APA (7th ed.) Citation

Lock, B. E. (1973). Source of the Cow Head breccias of western Newfoundland. Journal of Geology, 81, 743. https://doi.org/10.1086/627928

Chicago Style (17th ed.) Citation

Lock, B. E. "Source of the Cow Head Breccias of Western Newfoundland." Journal of Geology 81 (1973): 743. https://doi.org/10.1086/627928.

MLA (9th ed.) Citation

Lock, B. E. "Source of the Cow Head Breccias of Western Newfoundland." Journal of Geology, vol. 81, 1973, p. 743, https://doi.org/10.1086/627928.