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Social Bees and Wasp (ins.: Hymenoptera, Apidae and Vespidae) from the Estuary of the River Ängerän, Sweden
Bo G. Svensson
出版
Umeå University, Department of Ecological Zoology
, 1979
URL
http://books.google.com.hk/books?id=PXZnHAAACAAJ&hl=&source=gbs_api