APA (7th ed.) Citation

Westrop, S. R. (1986). Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta. Canadian Soc. of Petrolium Geologists.

Chicago Style (17th ed.) Citation

Westrop, Stephen R. Trilobites of the Upper Cambrian Sunwaptan Stage, Southern Canadian Rocky Mountains, Alberta. Calgary, Alberta u.a: Canadian Soc. of Petrolium Geologists, 1986.

MLA (9th ed.) Citation

Westrop, Stephen R. Trilobites of the Upper Cambrian Sunwaptan Stage, Southern Canadian Rocky Mountains, Alberta. Canadian Soc. of Petrolium Geologists, 1986.