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Influence of Date of Cone Collection on Douglas-fir Seed Processing and Germination
Brian R. Wall
Donald L. Olson
Otis Eugene Hickman
Thomas Daniel Fahey
Thomas E. Hamilton
Walter G. Dahms
Ward W. Carson
其他書名
A Case History
出版
Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture
, 1975
URL
http://books.google.com.hk/books?id=aPp5AQAACAAJ&hl=&source=gbs_api