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  1. The ejaculatory complex in water mites (Acari:parasitengona) : morphology and potential value for systematics /
    By: Barr, David W. - Royal Ontario Museum.
    Publication info: [Toronto] :Royal Ontario Museum,1972.
    Contributed by: ROM - University of Toronto (archive.org)
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  2. Handbook of the crayfishes of Ontario /
    By: Crocker, Denton W. - Barr, David W. - Royal Ontario Museum.
    Publication info: Toronto :Published for Royal Ontario Museum by University of Toronto Press,1968.
    Contributed by: Royal Ontario Museum (archive.org)
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  3. Methods for the collection, preservation, and study of water mites (Acari: Parasitengona) /
    By: Barr, David W. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1973.
    Contributed by: Royal Ontario Museum (archive.org)
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