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Sex Identification of Adults and Pupae of a Birch Defoliator, Pheumaptera Hastata, in Interior Alaska

Richard Allen Werner

出版	U.S. Department of Agriculture, Forest Service, Pacific Nothwest Forest and Range Experiment Station, 1976
URL	http://books.google.com.hk/books?id=8JMtDvdpQ2EC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN