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Notes from Jornada Experimental Range, Las Cruces
Southwestern Forest and Range Experiment Station (Tucson, Ariz.)
出版
U.S. Department of Agriculture, Forest Service, Southwestern Forest and Range Experiment Station
, 1939
URL
http://books.google.com.hk/books?id=JrCHXwAACAAJ&hl=&source=gbs_api