APA (7th ed.) Citation

Greenbaum, W. W. (1988). The Gemstone Identifier. Prentice Hall Press.

Chicago Style (17th ed.) Citation

Greenbaum, Walter W. The Gemstone Identifier. New York: Prentice Hall Press, 1988.

MLA (9th ed.) Citation

Greenbaum, Walter W. The Gemstone Identifier. Prentice Hall Press, 1988.