Subjects: State by State (sorted alphabetically by title)
- Commercial law -- United States
- Communism -- United States
- Communism -- Washington (State) -- Seattle
- Communists -- United States -- Fiction
- Composers -- United States -- Biography
- Computer crimes -- United States
- Computer hackers -- United States -- Biography
- Computer networks -- Law and legislation -- United States
- Computer networks -- United States -- History
- Computer programmers -- United States -- Biography
- Computer programming -- Corrupt practices -- United States
- Computers -- Access control -- United States
- Conductors (Music) -- United States -- Biography
- Confederate States of America
- Confederate States of America. Army
- Confederate States of America. Army. Alabama Infantry Regiment, 1st. Company K
- Confederate States of America. Army. Arkansas Infantry Regiment, 1st -- Biography
- Confederate States of America. Army -- Biography
- Confederate States of America. Army -- Chaplains -- Biography
- Confederate States of America. Army -- Fiction
- Confederate States of America. Army. Georgia Artillery. Howell's Battery
- Confederate States of America. Army. Georgia Artillery. Martin's Battery
- Confederate States of America. Army. Georgia Infantry Regiment, 1st (1861-1862)
- Confederate States of America. Army. Georgia Infantry Regiment, 1st (1861-1862). Oglethorpe Infantry Company -- Biography
- Confederate States of America. Army. Georgia Infantry Regiment, 1st (1861-1865)