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  1. By: Hemming, Francis. - International Commission on Zoological Nomenclature. - Colloquium on Zoological Nomenclature Copenhagen, Denmark - International Congress of Zoology Copenhagen, Denmark).
    Edition: "2nd ed."
    Publication info: London :Printed by order of the International Trust for Zoological Nomenclature,1957.
    Holding Institution: American Museum of Natural History Library