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  1. The affinities of the North American species of Gomphus as revealed by the genitalia (Odonata, Gomphidae) /
    By: Walker, E. M. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1957.
    Contributed by: ROM - University of Toronto (archive.org)
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  2. Bibliography of Canadian zoology for the year 1914
    By: Walker, E. M. - Royal Society of Canada.
    Publication info: Ottawa :Printed for the Royal Society of Canada,1916.
    Contributed by: Canadiana.org (archive.org)
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  3. Bibliography of Canadian zoology for the year 1915
    By: Walker, E. M. - Royal Society of Canada.
    Publication info: Ottawa :Printed for the Royal Society of Canada,1917.
    Contributed by: Canadiana.org (archive.org)
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  4. Bibliography of Canadian zoology, 1913
    By: Walker, E. M. - Royal Society of Canada.
    Publication info: Ottawa :Printed for the Royal Society of Canada,1914.
    Contributed by: Canadiana.org (archive.org)
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  5. Insects. Part J Orthoptera /
    By: Walker, E. M. - Canadian Arctic Expedition
    Publication info: Ottawa :T. Mulvey,1920.
    Contributed by: Canadiana.org (archive.org)
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