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The Front Range Pine Type

Howard L. GaryPat O. CurrieRocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)

其他書名	A 40-year Photographic Record of Plant Recovery on an Abused Watershed
出版	Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 1977
URL	http://books.google.com.hk/books?id=SI4bqIcQ0P8C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN