Walker, G. (2013). Antarctica: An intimate portrait of a mysterious continent. Boston: Houghton Mifflin Harcourt Pub..
Chicago-stil citatWalker, Gabrielle. Antarctica: An Intimate Portrait of a Mysterious Continent. Boston: Houghton Mifflin Harcourt Pub., 2013.
MLA-referensWalker, Gabrielle. Antarctica: An Intimate Portrait of a Mysterious Continent. Boston: Houghton Mifflin Harcourt Pub., 2013.
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