APA (7th ed.) Citation

Grosvenor, G. (1931). Egrets at Cape Breton Island, N. S. The Auk, 48(1), 111.

Chicago Style (17th ed.) Citation

Grosvenor, Gilbert. "Egrets at Cape Breton Island, N. S." The Auk 48, no. 1 (1931): 111.

MLA (9th ed.) Citation

Grosvenor, Gilbert. "Egrets at Cape Breton Island, N. S." The Auk, vol. 48, no. 1, 1931, p. 111.