Dr. Walker makes a signal contribution in gathering together all available information on the dragonflies of Canada and Alaska. The order as a whole and the zygoptera are covered. The treatment is not confined to taxonomy and geographical distribution, but includes data on habitats, seasons of adult life, and brief notes on habits when these are available.
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Taal Engels ● Formaat EPUB ● ISBN 9781442638761 ● Uitgeverij University of Toronto Press, Scholarly Publishing Division ● Gepubliceerd 1953 ● Downloadbare 3 keer ● Valuta EUR ● ID 6568230 ● Kopieerbeveiliging Adobe DRM
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