5 books • 3 series
Relation Algebras by Games. Studies in Logic and the Foundations of Mathematics, Volume 147.
Taxonomy and Ecology of the Jumping Plant-Lice of Panama (Entomonograph, #9)
Legume Feeding Psyllids (Homoptera) of the West Palaearctic Region (Entomology Bulletin)
Nymphal Taxonomy and Systematics of the Psylloidea (Homoptera) (Entomology Bulletin)
Handbooks for the Identification of British Insects (Handbooks for the Identification of British Insects, v. 10, pt. 5a)