Wesson, R. L. (2017). Darwin's first theory: Exploring Darwin's quest for a theory of the earth (First Pegasus Books edition.). Pegasus Books.
Style de citation Chicago (17e éd.)Wesson, R. L. Darwin's First Theory: Exploring Darwin's Quest for a Theory of the Earth. First Pegasus Books edition. New York: Pegasus Books, 2017.
Style de citation MLA (8e éd.)Wesson, R. L. Darwin's First Theory: Exploring Darwin's Quest for a Theory of the Earth. First Pegasus Books edition. Pegasus Books, 2017.
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