United States. Army. Ordnance Department. (1911). Description of Barr and Stroud 9-foot horizontal base self-contained range finder, type F.Q.2, with instructions for its use, care, and preservation. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Description of Barr and Stroud 9-foot Horizontal Base Self-contained Range Finder, Type F.Q.2, with Instructions for Its Use, Care, and Preservation. Washington: U.S. GPO, 1911.
MLA (9th ed.) CitationUnited States. Army. Ordnance Department. Description of Barr and Stroud 9-foot Horizontal Base Self-contained Range Finder, Type F.Q.2, with Instructions for Its Use, Care, and Preservation. U.S. GPO, 1911.
Warning: These citations may not always be 100% accurate.