Earle, K. W. (1936). The geological map: An elementary taxt book for students of geography and geology. Methuen.
Citace podle Chicago (17th ed.)Earle, Kenneth W. The Geological Map: An Elementary Taxt Book for Students of Geography and Geology. London: Methuen, 1936.
Citace podle MLA (9th ed.)Earle, Kenneth W. The Geological Map: An Elementary Taxt Book for Students of Geography and Geology. Methuen, 1936.
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