Cita APA

Petralia, J. F., & Petralia, J. F. (1982). Gold! Gold!: Beginners handbook : how to prospect for gold (Rev.). San Francisco: Sierra Trading Post.

Citación estilo Chicago

Petralia, Joseph F., y Joseph F. Petralia. Gold! Gold!: Beginners Handbook : How to Prospect for Gold. Rev. San Francisco: Sierra Trading Post, 1982.

Cita MLA

Petralia, Joseph F., y Joseph F. Petralia. Gold! Gold!: Beginners Handbook : How to Prospect for Gold. Rev. San Francisco: Sierra Trading Post, 1982.