TY  - GEN
AU  - Ittersum, M. K. Van 
AU  - Geijn, S. C. Van De 
TI  - Perspectives for agronomy: adopting ecological principles and managing resource use
SN  - 0444828524
U1  - 630.7 
PY  - 1997///
CY  - Amsterdam
PB  - Elsevier
KW  - Education, research, related topics
KW  - Agriculture and related technologies
ER  -