Christopherson, R. W., & Hobbs, G. L. (1998). Applied physical geography: Geosystems in the laboratory (2nd ed.). Prentice Hall.
Chicago Style (17. basım) AtıfChristopherson, Robert W., ve Gail L. Hobbs. Applied Physical Geography: Geosystems in the Laboratory. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 1998.
MLA (9th ed.) AtıfChristopherson, Robert W., ve Gail L. Hobbs. Applied Physical Geography: Geosystems in the Laboratory. 2nd ed. Prentice Hall, 1998.
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