TY  - BOOK
AU  - Villegas, Bernardo M.
AU  - Abola, Victor A., jt auth
TI  - Economics: an introduction.
SN  - 971-554-061-9
AV  - F HB 171.5 V714.e 1992 
PY  - 1992///
CY  - Manila
PB  - Sinag-Tala Pub
KW  - Economics
ER  -