TY  - BOOK
TI  - Transition from extensive to intensive agriculture with fertilizers; proceedings
T2  - Proceedings of the VIIIth Colloquium of the International Potash Institute held in Israel, 1969
U1  - 631.816 1969 (082.2)  K9 
PY  - 1969///
CY  - Berne
PB  - International Potash Institute
KW  - Soil science,Fertilizers
ER  -