APA (7th ed.) Citation

Tanner, H. (1977). Guns of the world. [publisher not identified].

Chicago Style (17th ed.) Citation

Tanner, Hans. Guns of the World. New York : Bonanza Books: [publisher not identified], 1977.

MLA (9th ed.) Citation

Tanner, Hans. Guns of the World. [publisher not identified], 1977.