Cita APA (7th ed.)

Walker, R. G. (1984). Facies models (2nd ed.). Geological Association of Canada.

Cita Chicago (17th ed.)

Walker, Roger G. Facies Models. 2nd ed. Toronto: Geological Association of Canada, 1984.

Cita MLA (9th ed.)

Walker, Roger G. Facies Models. 2nd ed. Geological Association of Canada, 1984.