APA (7th ed.) Citation

British Museum. (1850). Catalogue of the mollusca in the collection of the British Museum. British Museum (Natural History).

Chicago Style (17th ed.) Citation

British Museum. Catalogue of the Mollusca in the Collection of the British Museum. London: British Museum (Natural History), 1850.

MLA (9th ed.) Citation

British Museum. Catalogue of the Mollusca in the Collection of the British Museum. British Museum (Natural History), 1850.