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American Medicinal Plants of Commercial Importance

Arthur Frederick Sievers

出版	United States Department of Agriculture, 1930
URL	http://books.google.com.hk/books?id=5R4FAQAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Among the wild plants of the United States are many that have long been used in the practice of medicine, some only locally and to a minor extent, but others in sufficient quantity to make them commercially important.