The chemical control of the human environment; plenary lectures. - International Symposium on the Chemical Control of the Human Environment, Johannesburg, 1969. (London Butterworths, 1970)
Sponsored by the International Union of Pure and Applied chemistry, Applied Chemistry division in conjunction with Council for Scientific and Industrial Research and South African Chemical Institute and held in Johannesburg, South Africa, 14-18 July, 1969.
Keywords: Pest control -- Congresses