TY  - BOOK
TI  - Nutrient Baances and the Need for fertilizers inSemi-Arid and Arid Rgulation: : Proceedings of the 17th Colloqiim of the International Patash institute Held in IPI Held in Rabat and  Marraech1/Maroccco 1983
PY  - 1973///
CY  -  Bern
PB  - International Patesh Institute  
ER  -