TY  - BOOK
AU  - Balassa,Bela A.
TI  - The theory of economic integration
T2  - The Irwin Series in Economics 
U1  - 338.91 23
PY  - 1961///[printing 1963]
CY  - Illinois
PB  - Richard D. Irwin,Inc.
KW  - International economic integration
N1  - Includes index and Bibliography
ER  -