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  1. Control of bedbugs, fleas, lice and wasps
    By: Twinn, C. R. - Canada.
    Publication info: Ottawa :Canada Department of Agriculture,1956.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
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  2. Control of black flies in Canada /
    By: Twinn, C. R. - Peterson, D. G. - Canada.
    Publication info: Ottawa :Science Service, Entomology Division, Canada Dept. of Agriculture,1955 (1958 printing).
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
    View Book
  3. Control of rats and mice
    By: Twinn, C. R. - Canada.
    Publication info: Ottawa :Canada Department of Agriculture,1956.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
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  4. Household insects and their control /
    By: Gibson, Arthur. - Twinn, C. R.
    Edition: Rev.
    Publication info: Ottawa :Minister of Agriculture,1931.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
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  5. Répression des punaises, des puces, des poux, et des guêpes /
    By: Twinn, C. R. - Canada.
    Publication info: Ottawa :Ministère de l'agriculture du Canada, Service des sciences, Division de l'entomologie,1957.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
    View Book