APA (7th ed.) Citation

Clark, A. M. (1993). Hey's mineral index: Mineral species, varieties and synonyms (3. ed.). Chapman & Hall.

Chicago Style (17th ed.) Citation

Clark, Andrew M. Hey's Mineral Index: Mineral Species, Varieties and Synonyms. 3. ed. London u.a: Chapman & Hall, 1993.

MLA (9th ed.) Citation

Clark, Andrew M. Hey's Mineral Index: Mineral Species, Varieties and Synonyms. 3. ed. Chapman & Hall, 1993.