Environmental effects of organic and inorganic contaminants in sewage sludge proceedings of a workshop held at Stevenage, May 25-26, 1982 - Davis, R. D., 1949-; Hucker, T. W. G., 1922-; L'Hermite, P. (Pierre), 1936- (D. Reidel Pub. Co. Sold and distributed in the U.S.A. and Canada by Kluwer Boston, 1983)