APA (7th ed.) Citation

Sykes, P. W., & Sonneborn, D. W. (1998). First Breeding Records of Whooper Swan and Brambling in North America at Attu Island, Alaska. The Condor, 100(1), 162.

Chicago Style (17th ed.) Citation

Sykes, Paul W., and David W. Sonneborn. "First Breeding Records of Whooper Swan and Brambling in North America at Attu Island, Alaska." The Condor 100, no. 1 (1998): 162.

MLA (9th ed.) Citation

Sykes, Paul W., and David W. Sonneborn. "First Breeding Records of Whooper Swan and Brambling in North America at Attu Island, Alaska." The Condor, vol. 100, no. 1, 1998, p. 162.