APA (7th ed.) Citation

Shumard, G. (1969). Billy the kid: The Robin Hood of Lincoln County? (First ed.). Cambray Enterprises.

Chicago Style (17th ed.) Citation

Shumard, George. Billy the Kid: The Robin Hood of Lincoln County? First ed. Deming, N. M.: Cambray Enterprises, 1969.

MLA (9th ed.) Citation

Shumard, George. Billy the Kid: The Robin Hood of Lincoln County? First ed. Cambray Enterprises, 1969.