Biological control programmes against insects and weeds in Canada, 1969-1980 - Kelleher, J.S., ed. (Slough CAB, 1981)
Keywords: Hulme, M.A., jt. ed; Edited by J.S.Kelleher and M.A.Hulme.; Insects-Biological control-Canada,Weeds-Biological control-Canada,Biological control-weeds-Canada