APA (7th ed.) Citation

Geological Survey of Canada, Poitevin, E., Cooke, H. C., & Gunning, H. C. (1927). Contributions to Canadian mineralogy and petrography. F.A. Acland, printer.

Chicago Style (17th ed.) Citation

Geological Survey of Canada, Eugene Poitevin, Harold Caswell Cooke, and Henry Cecil Gunning. Contributions to Canadian Mineralogy and Petrography. Ottawa: F.A. Acland, printer, 1927.

MLA (9th ed.) Citation

Geological Survey of Canada, et al. Contributions to Canadian Mineralogy and Petrography. F.A. Acland, printer, 1927.