TY  - BOOK
AU  - Heilbroner,Robert L.
TI  - The future as history: the historic currents of our time and the direction in wich they are taking America 
AV  - E 744 H45
PY  - 1960///
CY  - New York
PB  - Harper
KW  - Estados Unidos
KW  - Relaciones exteriores
ER  -