Bird flocks and the breeding cycle: a contribution to the study of avian sociality.
London: Cambridge University Press, 1938. Octavo, very good copy in chipped dustwrapper. More
London: Cambridge University Press, 1938. Octavo, very good copy in chipped dustwrapper. More
St Peter Port, Guernsey: La Société Guernesiaise, 1991. Octavo, wrappers, maps, tables. More
London: Institute of Biology, 1968. Octavo, text illustrations, a good copy in sunned and slightly chipped dustwrapper. More
London: Zoological Society of London, 1933. Octavo, eight monochrome plates, publisher's cloth. More