Metcalf ,Robert L The future for insecticides:needs and prospects Proceedings of a rockefeller foundation conference Bellagio , Ilaly , april 22 - 27 , 1974 Robert L metcalf and John J mcKelvey - New York John wiley & sons c1976 - xiv , 524p. ISBN: 0471598607 Subjects--Index Terms: Insecticides Dewey Class. No.: 668.651 / MET