APA (7th ed.) Citation

Threlfall, W. (1968). Helminth parasites of some birds in Newfoundland. Canadian Journal of Zoology, 46(5), 909.

Chicago Style (17th ed.) Citation

Threlfall, William. "Helminth Parasites of Some Birds in Newfoundland." Canadian Journal of Zoology 46, no. 5 (1968): 909.

MLA (9th ed.) Citation

Threlfall, William. "Helminth Parasites of Some Birds in Newfoundland." Canadian Journal of Zoology, vol. 46, no. 5, 1968, p. 909.