Spencer, R. F. (1959). The North Alaskan Eskimo: A study in ecology and society. United States Government Printing Office.
Chicago-viite (17. p.)Spencer, Robert F. The North Alaskan Eskimo: A Study in Ecology and Society. Washington: United States Government Printing Office, 1959.
MLA-viite (9. p.)Spencer, Robert F. The North Alaskan Eskimo: A Study in Ecology and Society. United States Government Printing Office, 1959.
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