Signal service notes,
no. 1-20, 22-23.
APA Citation
United States. Army. Signal Corps. (188285). Signal service notes: no. 1-20, 22-23. Washington: Signal office [etc.].
MLA Citation
United States. Army. Signal Corps. Signal Service Notes: No. 1-20, 22-23. Washington: Signal office [etc.], 188285.
Warning: These citations may not always be complete (especially for serials).