APA (7th ed.) Citation

Benton, M. J., Cook, E., & Turner, P. (2002). Permian and Triassic red beds and the Penarth Group of Great Britain. Joint Nature Conservation Committee.

Chicago Style (17th ed.) Citation

Benton, M. J., E. Cook, and P. Turner. Permian and Triassic Red Beds and the Penarth Group of Great Britain. Peterborough: Joint Nature Conservation Committee, 2002.

MLA (8th ed.) Citation

Benton, M. J., et al. Permian and Triassic Red Beds and the Penarth Group of Great Britain. Joint Nature Conservation Committee, 2002.