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Inexpensive Replacement Elements for Laboratory Hot Plates

Harold W. Rusk

出版	U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1947
URL	http://books.google.com.hk/books?id=xnpHAQAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN