登入
選單
返回
Google圖書搜尋
Snow Breakage in a Pole-sized Ponderosa Pine Plantation-- More Damage at High-stand Densities
Robert F. Powers
William W. Oliver
出版
Forest Service, U.S. Department of Agriculture, Pacific Southwest Forest and Range Experiment Station
, 1970
URL
http://books.google.com.hk/books?id=ql_KHAAACAAJ&hl=&source=gbs_api