Dathan, W. (2012). The Reindeer Botanist: Alf Erling Porsild, 1901-1977. University of Calgary Press.
Chicago-čujuhus (17. p.)Dathan, Wendy. The Reindeer Botanist: Alf Erling Porsild, 1901-1977. Calgary: University of Calgary Press, 2012.
MLA-čujuhus (9. p.)Dathan, Wendy. The Reindeer Botanist: Alf Erling Porsild, 1901-1977. University of Calgary Press, 2012.
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