| title | creator | language | description | tableOfContents | contributor | subject | created |
| Operation Terror | Leinster, Murray, 1896-1975 | en | | | | Science fiction; Human-alien encounters -- Fiction; Extraterrestrial beings -- Fiction | 2006-02-27 |
| The Major Operations of the Navies in the War of American Independence | Mahan, A. T. (Alfred Thayer), 1840-1914 | en | | | | | 2005-08-27 |
| Operation Lorelie | Salton, William P. | en | | | Ashman, William [Illustrator] | Science fiction; Short stories | 2009-06-19 |
| Operation Haystack | Herbert, Frank, 1920-1986 | en | | | Dongen, H. R. van [Illustrator] | Science fiction, American; Conspiracies -- Fiction | 2008-03-01 |
| Steam Turbines
A Book of Instruction for the Adjustment and Operation of
the Principal Types of this Class of Prime Movers | Collins, Hubert E. (Hubert Edwin), 1872-1932 | en | | | | | 2009-01-02 |
| Church Cooperation in Community Life | Vogt, Paul L. (Paul Leroy), 1878- | en | | | | | 2008-07-23 |
| Operation Earthworm | Archibald, Joe, 1898-1989 | en | | | | Science fiction; Short stories | 2009-07-03 |
| Colonel Crockett's Co-operative Christmas | Hughes, Rupert, 1872-1956 | en | | | | Christmas stories; Epistolary fiction | 2007-09-21 |
| The Second Battalion Royal Dublin Fusiliers in the South African War
With a Description of the Operations in the Aden Hinterland | | en | | | | South African War, 1899-1902 -- Regimental histories; Great Britain. Army. Royal Dublin Fusiliers. 2nd Battalion | 2008-05-26 |
| Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship | | en | | | | Flying-machines; Aeronautics | 1997-05-01 |
| Missionary Survey As An Aid To Intelligent Co-Operation In Foreign Missions | Allen, Roland, 1869-1947 | en | | | | | 2004-09-03 |
| Operation: Outer Space | Leinster, Murray, 1896-1975 | en | | | | Science fiction; Interstellar travel -- Fiction; Television programs -- Fiction | 2006-05-10 |
| A Sketch of the Causes, Operations and Results of the San Francisco Vigilance Committee of 1856 | Webb, Stephen Palfrey, 1804-1879 | en | | | | | 2004-06-01 |
| Food Guide for War Service at Home
Prepared under the direction of the United States Food Administration in co-operation with the United States Department of Agriculture and the Bureau of Education, with a preface by Herbert Hoover | | en | | | | | 2004-11-15 |
| A Manual of the Operations of Surgery
For the Use of Senior Students, House Surgeons, and Junior Practitioners | Bell, Joseph, 1837-1911 | en | | | | | 2008-02-11 |
| Police Operation | Piper, H. Beam, 1904-1964 | en | | | | | 2006-08-16 |
| The Goat-gland Transplantation
As Originated and Successfully Performed by J. R. Brinkley,
M. D., of Milford, Kansas, U. S. A., in Over 600 Operations
Upon Men and Women | Flower, Sydney Blanshard, 1867- | en | | | | Brinkley, John Richard, 1885-1942; Transplantation of organs, tissues, etc. | 2009-07-10 |
| Consumers' Cooperative Societies in New York State | Consumers' League of New York, The | en | | | | | 2004-01-01 |
| The Ethics of Coöperation | Tufts, James Hayden, 1862-1942 | en | | | | Cooperation; Social ethics | 2009-07-25 |
| Zenith Television Receiver Operating Manual | Anonymous | en | | | | | 2009-01-18 |
| Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911
Water Purification Plant, Washington, D. C. Results of Operation. | | en | | | | | 2008-12-27 |
| Speaking of Operations | Cobb, Irvin S. (Irvin Shrewsbury), 1876-1944 | en | | | | | 1999-09-01 |
| Operations Upon the Sea
A Study | Edelsheim, Franz, Freiherr von, 1868- | en | | | | Germany. Heer -- Transport service; Germany. Kriegsmarine; Sea-power; Transportation, Military | 2008-11-12 |
| Installation and Operation Instructions For Custom Mark III CP Series Oil Fired Unit | Anonymous | en | | | | Boilers; Hot-water heating | 2009-02-25 |
| Reflections on the Operation of the Present System of Education, 1853 | Andrews, C. C. (Christopher Columbus), 1829-1922 | en | | | | | 2009-03-15 |