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Regenerating Loblolly Pine by Direct Seeding, Natural Seeding, and Planting

Thomas E. Campbell

出版	Southern Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1973
URL	http://books.google.com.hk/books?id=TfTMydFkouMC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN