TY  - BOOK
AU  - Villegas, Bernardo M.
AU  - Victor A. Abola
TI  - Economics :  : an introduction 
U1  - Fil. 330 V174 
PY  - 1982///
CY  - Manila, Philippines
PB  - Sinag-Tala Publishers, Inc.
KW  - Economics
ER  -