TY  - BOOK
TI  - Environmental impact of nonpoint source pollution / edited by Michael ROvercash, James MDavidson
SN  - 0250403390
U1  - 363.7394 ENV 
CY  - Ann Arbor, Mich: Ann Arbor Science, c1980.
KW  - Nonpoint source pollution Nonpoint source pollution--United States
ER  -