| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Young Wireless Operator—As a Fire Patrol The Story of a Young Wireless Amateur Who Made Good as a Fire Patrol | Theiss, Lewis E. (Lewis Edwin), 1878-1963 | en | 2004-07-07 | ||||
| The Night Operator | Packard, Frank L. (Frank Lucius), 1877-1942 | en | 2010-09-04 | ||||
| Radio Shack TRS-80 Expansion Interface: Operator's Manual Catalog Numbers: 26-1140, 26-1141, 26-1142 | Anonymous | en | 2008-12-09 |