Cita APA (7th ed.)

Armstrong, M. N. A. D. (1941). Fieldcraft, sniping and intelligence (2nd ed.). Gale & Polden.

Cita Chicago (17th ed.)

Armstrong, Major Nevill A. D. Fieldcraft, Sniping and Intelligence. 2nd ed. Aldershot: Gale & Polden, 1941.

Cita MLA (8th ed.)

Armstrong, Major Nevill A. D. Fieldcraft, Sniping and Intelligence. 2nd ed. Gale & Polden, 1941.