TY  - BOOK
AU  - Weaver, Henry Grady.
TI  - The mainspring of human progress
CY  - New York
PB  - The Foundation For Economic Education, Inc.
KW  - 1. LIBERTAD
KW  - -ESTADOS UNIDOS
KW  - 2. DERECHOS HUMANOS
KW  - 3. DEMOCRACIA
KW  - 4.PROGRESO
KW  - 5. INDIVIDUALISMO
ER  -