The Royal Society Crop protection chemicals: directions of future development: a royal society discussion organized by L. Fowden and I.j. Graham-Bryce held on 18 and 19 February 1981 (Book) - London The Royal Society 1981 - 212p. 32 cm. ISBN: 0854031758 Subjects--Topical Terms: Agricultural pests--Control--Congresses Pesticides--Congresses Universal Decimal Class. No.: 631.348.4 ROY / 8984