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Google圖書搜尋
Influence of Stand Density on Stem Quality in Pole-size Northern Hardwoods
Richard M. Godman
David J. Brooks
出版
U.S. North Central Forest Experiment Station
, 1971
URL
http://books.google.com.hk/books?id=nc0kFtkUKRAC&hl=&source=gbs_api