APA (7th ed.) Citation

Sofianides, A. S., & Harlow, G. E. (2015). Gems & crystals from one of the world's great collections (Revised edition.). Sterling Signature.

Chicago Style (17th ed.) Citation

Sofianides, Anna S., and George E. Harlow. Gems & Crystals from One of the World's Great Collections. Revised edition. New York: Sterling Signature, 2015.

MLA (8th ed.) Citation

Sofianides, Anna S., and George E. Harlow. Gems & Crystals from One of the World's Great Collections. Revised edition. Sterling Signature, 2015.

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