Strahler, A. N. (1970). Introduction to physical geography. New York: John Wiley & Sons, Inc.
Trích dẫn kiểu ChicagoStrahler, Arthur Newell. Introduction to Physical Geography. New York: John Wiley & Sons, Inc, 1970.
Deismireacht MLAStrahler, Arthur Newell. Introduction to Physical Geography. New York: John Wiley & Sons, Inc, 1970.
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