1. Offical Methods of Analysis, 13th Ed, AOAC, Washington, DC, (1980). (1a) 29.001-29.018, (1b) 29.029-29.034, (1c) 29.039-29.043
2. Pesticide Analytical Manual Vol I, Food and Drug Administration, Washington, DC, (1979). (2a) 212, 232.1 (2b) 211, 231, 232.3, (2d) 232.4.
3. Canadian Manual on Analytical Methods for Pesticide Residues in Food, Information Canada, Ottawa, Canada, Cal. no H 44-2869-REV (1973). Analytical Methods.
4. Methodensamlung zur Rueckstandsanalytik von Planzenschumitteln, verlag Chemie GmbH, Weinheim 1 Bergstrasse, Federal Republic of Germany, 5, Lieferung (1979). (4a) S5, (4b) S8, (4c) S12 and S13.
5. Pesticide residues in the total diet in England and Wales, 1966-1967: III.-Organophosphorus pesticide residues in the total diet