APA (7th ed.) Citation

Geological Association of Canada & Walker, R. G. (1986). Facies models (2nd ed.). Geological Association of Canada.

Chicago Style (17th ed.) Citation

Geological Association of Canada and Roger G. Walker. Facies Models. 2nd ed. Toronto: Geological Association of Canada, 1986.

MLA (9th ed.) Citation

Geological Association of Canada and Roger G. Walker. Facies Models. 2nd ed. Geological Association of Canada, 1986.