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Google圖書搜尋
Identifying Gypsy Moth Early Larval Instars
Michael L. McManus
Daniel B. Twardus
出版
United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station
, 1988
URL
http://books.google.com.hk/books?id=CjdXvgEACAAJ&hl=&source=gbs_api