APA (7th ed.) Citation

Howarth, M. K. (1975). The shell structure of the Liassic ammonite family Dactylioceratidae. Trustees of the British Museum (Natural History).

Chicago Style (17th ed.) Citation

Howarth, Michael Kingsley. The Shell Structure of the Liassic Ammonite Family Dactylioceratidae. London: Trustees of the British Museum (Natural History), 1975.

MLA (9th ed.) Citation

Howarth, Michael Kingsley. The Shell Structure of the Liassic Ammonite Family Dactylioceratidae. Trustees of the British Museum (Natural History), 1975.