A study of the aphididae (homoptera) of West Africa.
London: Order of the Trustees, 1961. Octavo, text illustrations, inscribed by the author, publisher's cloth. More
London: Order of the Trustees, 1961. Octavo, text illustrations, inscribed by the author, publisher's cloth. More
Berkeley: University of California Press, 1958. Octavo, photographs, text illustrations. Publisher's wrappers, partially sunned, inscribed by the author to Edgar Riek. University of California Publications in Entomology. Volume 14, Number two. More
Berkeley: University of California Press, [1964. reprint). Octavo, wrappers, photographs, text illustrations. Signed by the author. University of California Publications in Entomology. Volume 38. More
Ottawa: Entomological Society of Canada, 1963. Octavo, Binder's cloth, inscribed by the author to Edgar Riek. The Canadian Entomologist, Supplement Number 30. More
Ibadan: Oxford University Press, 1974. Quarto, text illustrations, signed by the author, softcover. More