APA (7th ed.) Citation

Gronberger, S. M. (1912). Two New Birds for Greenland. The Auk, 29(1), 109.

Chicago Style (17th ed.) Citation

Gronberger, S. M. "Two New Birds for Greenland." The Auk 29, no. 1 (1912): 109.

MLA (9th ed.) Citation

Gronberger, S. M. "Two New Birds for Greenland." The Auk, vol. 29, no. 1, 1912, p. 109.