TY  - BOOK
AU  - International Nitrogen Conference Cowling, Ellis & others Ed. Galloway, James Ed.
TI  - Optimization nitrogen management in food and energy production and environmental protection
U1  - 577.145 
PY  - 2002///
CY  - Tokyo
PB  - A.A.Balkema
KW  - Nitrogen-environmental aspects
KW  - Nitrogen Cycle
ER  -