TY  - BOOK
AU  - Laws,Edward A.
TI  - Aquatic pollution: an introductory text 
T2  - Environmental science and technology
SN  - 0471534579
AV  - TD420 L37 1993
PY  - 1993///]
CY  - New York
PB  - J. Wiley
KW  - Agua
KW  - Contaminación
ER  -