TY  - BOOK
AU  - GRUBEL Herbert G
TI  - International monetary system :  Efficiency and practical alternatives   
T2  - Penguin modern economics texts
SN  - 140801111
U1  - X61,1N69, K9/SC 
PY  - 1969///
CY  - England
PB  - Penguin books         
ER  -