TY  - BOOK
TI  - Potassium research and agricultural production  
PY  - 1974///
CY  - Worblaufen
PB  - International Potash Institute
KW  - Potassium Organic fertiligers
N1  - Proceedings Of The 10Th Congress Of The International Potash Institute Held In June 1974 In Budapest, Hungary
ER  -