APA (7th ed.) Citation

Olsen, M. A., & Matthews, A. (1992). The gold book: A guide to commonly traded gold bullion coins and bars. Westminster Publ. Co.

Chicago Style (17th ed.) Citation

Olsen, M. A., and Alison Matthews. The Gold Book: A Guide to Commonly Traded Gold Bullion Coins and Bars. Westminster, Colo: Westminster Publ. Co, 1992.

MLA (9th ed.) Citation

Olsen, M. A., and Alison Matthews. The Gold Book: A Guide to Commonly Traded Gold Bullion Coins and Bars. Westminster Publ. Co, 1992.