Electrical instruments and telephones of the U.S. Signal corps.
APA Citation
United States. Army. Signal Corps. (1911). Electrical instruments and telephones of the U.S. Signal corps. Revised 1910. Washington: Govt. print. off..
MLA Citation
United States. Army. Signal Corps. Electrical Instruments And Telephones of the U.S. Signal Corps. Revised 1910. Washington: Govt. print. off., 1911.
Warning: These citations may not always be complete (especially for serials).