TY  - GEN
AU  - Addiscott T M, Whitmore A P
AU  - Poulson D S
TI  - Farming, fertilizers and the nitrate problem
SN  - 0851986587
U1  - 631.842 ADD 
CY  - U K, C A B international
KW  - Nitrogen-crop production/nitrogen cycle-compurter models
ER  -