APA (7th ed.) Citation

Thompson, T., & Brown, G. H. (1976). British opistobranch molluscs. Mollusca, Gastropoda: Keys and notes for the identification of the species. Academic Press.

Chicago Style (17th ed.) Citation

Thompson, T.E, and Gregory H. Brown. British Opistobranch Molluscs. Mollusca, Gastropoda: Keys and Notes for the Identification of the Species. London [etc.]: Academic Press, 1976.

MLA (9th ed.) Citation

Thompson, T.E, and Gregory H. Brown. British Opistobranch Molluscs. Mollusca, Gastropoda: Keys and Notes for the Identification of the Species. Academic Press, 1976.