United States. Army. Ordnance Department. (1876). Firing-pins and firing-pin springs. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Firing-pins and Firing-pin Springs. [Washington]: [publisher not identified], 1876.
MLA (9th ed.) CitationUnited States. Army. Ordnance Department. Firing-pins and Firing-pin Springs. [publisher not identified], 1876.
Warning: These citations may not always be 100% accurate.