00484nam a2200157 a 4500 043491374X DLC 363 HEI 1988 A013 Or. Newman, P. J. Classification of surface water quality : review of schemes used in EC member states / Oxford : Heinemann Professional Pub., 1988. xii, 189 p. : ill. (some col.) ; 31 cm. Water quality management Water quality EK 13269 13269 0 0 0 363_000000000000000_HEI_1988_A013_OR 0 63901 LBA LBA A013 2017-08-22 363 HEI 1988 A013 Or. A17223 2017-08-22 2017-08-22 EK