TY  - BOOK
AU  - Villegas, B.
AU  - Abola, Victor A.
TI  - Economics: : an introduction
SN  - 971-117-067-1.
U1  - Fil. 330 V714 1992 
PY  - 1992///
CY  - Manila: 
PB  - Sinag-tala Publishers, Inc., 
KW  - 1. Economics
N1  - Includes index
ER  -