Biological control of pests and weeds.
London: Edward Arnold, (1931. second edition), Octavo, photographs, text illustrations, very good copy in dustwrapper. Studies in Biology, no. 132. More
London: Edward Arnold, (1931. second edition), Octavo, photographs, text illustrations, very good copy in dustwrapper. Studies in Biology, no. 132. More
Farnham Royal: Commonwealth Agricultural Bureaux, [1960. first edition). Octavo, publisher's cloth. Commonwealth Institute of Biological Control, Ottawa, Canada: Technical Communication No.1. More