TY  - BOOK
AU  - Follett, R. F.
TI  - Nitrogen management and ground water protection
SN  - 0444873937
U1  - 628 ELS 1989 A052 Or. 
PY  - 1989///
CY  - Amsterdam, New York
PB  - Elsevier
KW  - Nitrogen fertilizers
KW  - Groundwater
KW  - Water quality management
KW  - Nitrogen in agriculture
ER  -