Ixodoidea of Canada
Gregson, J.D.
Ixodoidea of Canada - Ottawa 1956 - 92 p. & 1 pl. - No. 930 Canada Department of Agriculture Publication .
Ixodoidea
Ixodoidea of Canada - Ottawa 1956 - 92 p. & 1 pl. - No. 930 Canada Department of Agriculture Publication .
Ixodoidea