TY  - BOOK
AU  - International Potash Institute
TI  - Nutrients Balance and the Need for Fertilizers in Semi and Arid Regions
T2  - Procdg. of the 17th. Colloluium of the Inter. Potash Inst
U1  - 631.81 INT-N 
PY  - 1983///
PB  - Morcco Inter Potash Inst.
ER  -