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Effects of Grazing Upon Western Yellow-pine Reproduction in the National Forests of Arizona and New Mexico
Alonzo Dorus Melvin
Arnold Orlando Dahlberg
Burton James Howard
Harry B. McClure
Herbert Sinclair Fairbank
Homer Columbus Thompson
Lon Adrian Hawkins
Louis George Connor
Robert Roy Hill
Charles Henry Stephenson
Marion Dorset
Warren Fales Draper
Robert Francis Eastham
出版
U.S. Department of Agriculture
, 1917
URL
http://books.google.com.hk/books?id=0X0ufDQqu0wC&hl=&source=gbs_api
EBook
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