TY  - BOOK
AU  - Murry Tracy
TI  - Trade preferences for developing countries
T2  - Problems of economic integration
U1  - X:54.1(X).N7, L7 
PY  - 1977///
CY  - London
PB  - Macmillan U. K.        
KW  -  Economics
KW  - International Trade
ER  -