APA (7th ed.) Citation

Heath, H. (1915). Birds Observed on Forrester Island, Alaska, during the Summer of 1913. The Condor, 17(1), 20.

Chicago Style (17th ed.) Citation

Heath, Harold. "Birds Observed on Forrester Island, Alaska, During the Summer of 1913." The Condor 17, no. 1 (1915): 20.

MLA (9th ed.) Citation

Heath, Harold. "Birds Observed on Forrester Island, Alaska, During the Summer of 1913." The Condor, vol. 17, no. 1, 1915, p. 20.