TY  - BOOK
AU  - Stevenson, S J., ed.
TI  - Nitrogen in agricultural soils
SN  - 0891180702
U1  - 631.416/STE 
PY  - 1982///
CY  - Madison
PB  - American Society of Agronomy
KW  - Crops and soils
KW  - Nitrogen fertilizers
ER  -