TY  - BOOK
AU  - Samuelson,Paul A.
TI  - Economics: an introductory analysis 
AV  - HB 171.5 S193e 1967
U1  - 330 
PY  - 1967///
CY  - New York
PB  - McGraw-Hill
KW  - Economics
KW  - Economía
N1  - Bibliographical footnotes
ER  -