Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Hurd, Paul D., Jr', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    Principal sunflower bees of North America with emphasis on the Southwestern United States (Hymemoptera Apoides) gan Hurd, Paul D., Jr

    Cyhoeddwyd 1980
    Llyfr

    Principal sunflower bees of North America with emphasis on the Southwestern United States (Hymemoptera Apoides)

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