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Investigations in Erosion Control and Reclamation of Eroded Shelby and Related Soils at the Conservation Experiment Station, Bethany, Mo., 1930-42
Alonzo Clayton Davis
Ernst Artschwager
George Ware Barber
Gustav A. Wiebe
Michael Hendrix Langford
Norma Lenys Pearson
Perley Spaulding
William Bell Cartwright
Lucille Reinbach-Welch
Ruebush George Shands
Philip Russell Cowan
出版
U.S. Department of Agriculture
, 1944
URL
http://books.google.com.hk/books?id=n1-jAQAACAAJ&hl=&source=gbs_api
