TY  - BOOK
AU  - Balassa,Bela A.
TI  - The theory of economic integration
T2  - Irwin series in economics
U1  - 338.91 
PY  - 1961///
CY  - Homewood, Ill.
PB  - R. D. Irwin
KW  - International economic integration
N1  - Includes bibliography
ER  -