APA (7th ed.) Citation

Fortey, R. A., Owens, R. M., & Molyneux, S. G. (1987). The Arenig Series in South Wales: Stratigraphy and palaeontology. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Fortey, Richard A., R. M. Owens, and S. G. Molyneux. The Arenig Series in South Wales: Stratigraphy and Palaeontology. London: British Museum (Natural History), 1987.

MLA (9th ed.) Citation

Fortey, Richard A., et al. The Arenig Series in South Wales: Stratigraphy and Palaeontology. British Museum (Natural History), 1987.