APA

Watson G. E., . (1975). Birds of the Antarctic and Sub-Antarctic. Washington, D. C., USA: American Geophysical Union.

Chicago

Watson George E, . 1975. Birds of the Antarctic and Sub-Antarctic. Washington, D. C., USA: American Geophysical Union.

Harvard

Watson G. E., . (1975). Birds of the Antarctic and Sub-Antarctic. Washington, D. C., USA: American Geophysical Union.

MLA

Watson George E, . Birds of the Antarctic and Sub-Antarctic. Washington, D. C., USA: American Geophysical Union. 1975.