APA (7th ed.) Citation

(1923). Loop radio telegraph set, type SCR-77-A. GPO.

Chicago Style (17th ed.) Citation

Loop Radio Telegraph Set, Type SCR-77-A. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

Loop Radio Telegraph Set, Type SCR-77-A. GPO, 1923.

Warning: These citations may not always be 100% accurate.