APA (7th ed.) Citation

Arem, J. E. (1977). Color encyclopedia of gemstones. Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Arem, Joel E. Color Encyclopedia of Gemstones. New York: Van Nostrand Reinhold, 1977.

MLA (8th ed.) Citation

Arem, Joel E. Color Encyclopedia of Gemstones. Van Nostrand Reinhold, 1977.

Warning: These citations may not always be 100% accurate.