Snook, J. (2008). Ice age extinction: Cause and human consequences. Algora Pub..
Chicago-čujuhus (17. p.)Snook, Jim. Ice Age Extinction: Cause and Human Consequences. New York: Algora Pub., 2008.
MLA-čujuhus (9. p.)Snook, Jim. Ice Age Extinction: Cause and Human Consequences. Algora Pub., 2008.
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