TY  - BOOK
ED  - International Symposium on Soil Fertility Evaluation (
TI  - Proceedings
U1  - 631.45 
PY  - 1971///-72
CY  - New Delhi
PB  - Indian Society of Soil Science
KW  - Suelos
KW  - Fertilidad
N1  - La biblioteca tiene: v.1, v.2
ER  -