193,776 ENVIRONMENTAL SCIENCE RESEARCH vol.4 Mass spectrometry and NMR /nuclear magnetic resonance/ spectroscopy In pesticide chemistry. Proceedings of a symposium held... during the 165th National Meeting of the American Chemical Society in Dallas, Texas, April 9-13, 1973. Ed. by Rizwanul Haque and Francis J. Biros. New York 1974 Plenum Press 4° s, XI, nlb. 1, 348. ilustr. Environmental Science Research vol. 4.