APA (7th ed.) Citation

Kunz, G. F. (1892). Gems and precious stones. Scientific Publishing Company.

Chicago Style (17th ed.) Citation

Kunz, George Frederick. Gems and Precious Stones. New York: Scientific Publishing Company, 1892.

MLA (9th ed.) Citation

Kunz, George Frederick. Gems and Precious Stones. Scientific Publishing Company, 1892.

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