1. The insects and arachnids of Canada, Part 13;Anderson,1985
2. Evolutionary stability since the Pleistocene illustrated by reproductive compatibility between Swedish and Spanish Helophorus lapponicus Thompson (Coleoptera: Hydrophilidae);Angus;Biological Journal of the Linnean Society of London,1983
3. A revision of the genus Tachinus (Coleoptera: Staphylinidae) of North and Central America;Campbell,1973
4. A revision of the North American Omaliinae (Coleoptera: Staphylinidae). 1. The genera Haida Keen, Pseudohaida Hatch, and Eudectoides New Genus. 2. The Tribe Coryphiini;Campbell,1978
5. A revision of the North American Omaliinae (Coleoptera: Staphylinidae): The genus Olophrum Erichson;Campbell;Canadian Entomologist,1983