APA (7th ed.) Citation

Gajda, G. J. (1982). Gold refining (2nd ed.). G. J. Gajda.

Chicago Style (17th ed.) Citation

Gajda, George J. Gold Refining. 2nd ed. Santa Monica, Calif.: G. J. Gajda, 1982.

MLA (9th ed.) Citation

Gajda, George J. Gold Refining. 2nd ed. G. J. Gajda, 1982.