APA (7th ed.) Citation

Fillion, D., & Pickerill, R. K. (1990). Ichnology of the Upper Cambrian? to Lower Ordovician Bell Island and Wabana groups of eastern Newfoundland, Canada. Canadian Soc. of Petrolium Geologists u.a.

Chicago Style (17th ed.) Citation

Fillion, Denis, and Ron K. Pickerill. Ichnology of the Upper Cambrian? to Lower Ordovician Bell Island and Wabana Groups of Eastern Newfoundland, Canada. Calgary, Alberta: Canadian Soc. of Petrolium Geologists u.a, 1990.

MLA (9th ed.) Citation

Fillion, Denis, and Ron K. Pickerill. Ichnology of the Upper Cambrian? to Lower Ordovician Bell Island and Wabana Groups of Eastern Newfoundland, Canada. Canadian Soc. of Petrolium Geologists u.a, 1990.