Cita APA (7a ed.)

(1971). Purnell's Illustrated Encyclopedia of Modern Weapons and Warfare. Purnell & Sons Ltd..

Cita Chicago Style (17a ed.)

Purnell's Illustrated Encyclopedia of Modern Weapons and Warfare. London: Purnell & Sons Ltd., 1971.

Cita MLA (9a ed.)

Purnell's Illustrated Encyclopedia of Modern Weapons and Warfare. Purnell & Sons Ltd., 1971.