Easterbrook, D. J., & Rahm, D. A. (1970). Landforms of Washington: The geologic environment. Printed by Union Print. Co.
Style de citation Chicago (17e éd.)Easterbrook, Don J., et David A. Rahm. Landforms of Washington: The Geologic Environment. Bellingham, Wash.: Printed by Union Print. Co, 1970.
Style de citation MLA (8e éd.)Easterbrook, Don J., et David A. Rahm. Landforms of Washington: The Geologic Environment. Printed by Union Print. Co, 1970.
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