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Investigations in Erosion Control and Reclamation of Eroded Land at the Red Plains Conservation Experiment Station, Guthrie, Okla. 1930-40
F. W. Poos, Arthur Charles Dillman, Barry Cutler Park, Bion Tolman, C. A. Matthews, C. J. Babcock, Earl W. McComas, Ernst Artschwager, Francis Eugene Clark, · Yayınevi bilinmiyor
Wharton Assembly Addresses, 1938
University of Pennsylvania (PHILADELPHIA). Wharton School of Finance and Commerce · Yayınevi bilinmiyor
Sayfa sayısı yok · 1938
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