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Management of Ponderosa Pine in the Southwest, as Developed by Research and Experimental Practice, by G.A. Pearson ...
Gustaf Adolph Pearson
G. A. Pearson
Etats-Unis. Department of agriculture
出版
U.S. Government Printing Office
, 1950
URL
http://books.google.com.hk/books?id=sc3wtgAACAAJ&hl=&source=gbs_api
