APA (7th ed.) Citation

Cocks, L. R. M. (1984). The Llandovery series of the type area. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Cocks, L. R. M. The Llandovery Series of the Type Area. London: British Museum (Natural History), 1984.

MLA (9th ed.) Citation

Cocks, L. R. M. The Llandovery Series of the Type Area. British Museum (Natural History), 1984.