TY  - BOOK
TI  - Nine papers read at the first Japanese Potassium Congress, Tokyo; 1957
U1  - 631.83(52) 1957 (082.2)  J8 
PY  - 1957///
CY  - Switzerland
PB  - IPI
KW  - Japanese Potassium Symposium
KW  - Potassium Fertilizers
ER  -