00000nam 2200000za 4500 9.699468 CaOODSP 20250527151634 cr ||||||||||| 150407s1956||||xxcaob||o f001 0 eng d CaOODSP eng n-cn--- A43-930/1956E-PDF Gregson, John D. The Ixodoidea of Canada [electronic resource] / by John. D. Gregson. Ottawa : Canada Department of Agriculture : Science Service, Entomology Division, 1956. 92 p. : ill., maps "January 1956". Historical publication digitized by Agriculture and Agri-Food Canada. Includes bibliographical references and index. 15-01-Supp 2015-01-26 Entomology gcpds Insects gcpds Canada. Department of Agriculture. Canada. Division of Entomology. http://publications.gc.ca PDF 7.1 MB https://publications.gc.ca/collections/collection_2014/aac-aafc/agrhist/A43-930-1956-eng.pdf 930