APA (7th ed.) Citation

Ashworth, J. H. (1912). Catalogue of the chaetopoda in the British Museum. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Ashworth, J. H. Catalogue of the Chaetopoda in the British Museum. London: British Museum (Natural History), 1912.

MLA (9th ed.) Citation

Ashworth, J. H. Catalogue of the Chaetopoda in the British Museum. British Museum (Natural History), 1912.