APA-čujuhus (7. p.)
Hopkins, D. M. (1967). The bering land bridge. Stanford University Press.
Chicago-čujuhus (17. p.)
Hopkins, David Moody. The Bering Land Bridge. Stanford, California: Stanford University Press, 1967.
MLA-čujuhus (9. p.)
Hopkins, David Moody. The Bering Land Bridge. Stanford University Press, 1967.
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