APA (7th ed.) Citation

Barr, S. M., & O'Beirne, A. M. (1981). Petrology of the Gillis Mountain pluton, Cape Breton Island, Nova Scotia. Canadian Journal of Earth Sciences, 18(2), 395.

Chicago Style (17th ed.) Citation

Barr, S. M., and A. M. O'Beirne. "Petrology of the Gillis Mountain Pluton, Cape Breton Island, Nova Scotia." Canadian Journal of Earth Sciences 18, no. 2 (1981): 395.

MLA (9th ed.) Citation

Barr, S. M., and A. M. O'Beirne. "Petrology of the Gillis Mountain Pluton, Cape Breton Island, Nova Scotia." Canadian Journal of Earth Sciences, vol. 18, no. 2, 1981, p. 395.