proceedings of the sixth international conference, Torino, Italy, 15-18 September 1987 Pawłowski, Łucjan. text Amsterdam New York Elsevier 1988 monographic xi, 411 p. : ill. ; 25 cm. edited by L. Pawlowski ... [et al.]. Includes bibliographies and index. Environmental chemistry Congresses Sewage Purification Congresses Pollutants Congresses TD193 .C484 1988 628.5 0444871306 (U.S.) 88038024 UOEL 000 20170725153644.0 000