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Biology of the Foxglove Aphid in the Northeastern United States

Herbert E. WaveWayland Arthur ShandsGeddes W. Simpson

出版	U.S. Department of Agriculture, 1965
URL	http://books.google.com.hk/books?id=98IXAAAAYAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN