APA (7th ed.) Citation

Hey, M. H. An index of mineral species & varieties: Arranged chemically ; with an alphabetical index of accepted mineral names and synonyms. British Museum.

Chicago Style (17th ed.) Citation

Hey, Max H. An Index of Mineral Species & Varieties: Arranged Chemically ; with an Alphabetical Index of Accepted Mineral Names and Synonyms. London: British Museum.

MLA (9th ed.) Citation

Hey, Max H. An Index of Mineral Species & Varieties: Arranged Chemically ; with an Alphabetical Index of Accepted Mineral Names and Synonyms. British Museum.