كتاب جغرافية المناخ والنبات
30- Strahler, A. R. "Physical Geography". John Wiley & Sons, Inc. New York, 1951.31- Taylur. George tf. (Elemetary Meteorology) . Prtntiea Hall Inc., New York, 2954-
32- Thornbuty, W. D. "Principles of Geomorphology" John Wiley & Sons, Inc., New York, 1937.
33- Thornthwaite, W. C "An Approach Toward a Balional Clasaincation of Climate", Geog. Review, Vol.
38, 1948. pp. 55-91.
34- Wooldridge, S. W. and R. S. Morgan, "Outlines of Geomorphology". Longmans, Green and Co. Inc. New York, 1937.
35- Von Engeln, 0. D. "Geomoiphology". The Macmillan Company, New York. 1942.
