TY  - BOOK
AU  - Babian, Haig
AU  - New York University
TI  - The permanent frontier: an illustrated history of the U.S. economy in action 
AV  - HC 103 N46
PY  - 1961///
CY  - New York
PB  - Institute of Economic Affairs
KW  - Estados Unidos
KW  - Condiciones económicas
ER  -