TY  - GEN
AU  - Logan,Terry J.
TI  - Effects of conservation tillage on groundwater quality: nitrates and pesticides 
SN  - 9781315892528 (hbk.)
AV  - S604 .E35 1987
U1  - 631.51 
PY  - 1987///
CY  - Chelsea, Mich.
PB  - Lewis Publishers
KW  - Conservation tillage
KW  - Groundwater
KW  - Nitrates
KW  - Pesticides
N1  - Includes bibliographies and index
ER  -