APA (7th ed.) Citation

Barker, A. (1991). The Billy the Kid quiz. [A. Barker].

Chicago Style (17th ed.) Citation

Barker, Allen. The Billy the Kid Quiz. [Sacramento, Calif.]: [A. Barker], 1991.

MLA (9th ed.) Citation

Barker, Allen. The Billy the Kid Quiz. [A. Barker], 1991.

Warning: These citations may not always be 100% accurate.