TY  - BOOK
AU  - LAWS,EDWARD A.
TI  - AQUATIC POLLUTION: AN INTRODUCTORY TEXT: 2EN ED / 
U1  - 628.168 
PY  - 1993///
CY  - [S.N] : 
PB  - JOHN WILEY AND SONS. INC ، 
KW  - WATER POLLUTION
ER  -