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Google圖書搜尋
Silvicultural Systems and Cutting Methods for Old-growth Lodgepole Pine Forests in the Central Rocky Mountains
Robert R. Alexander
出版
U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
, 1986
URL
http://books.google.com.hk/books?id=pQp8Iz93ABoC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN