Villegas, Bernardo M. Economics : an introduction / Bernardo M. Villegas, Victor A. Abola. - 5th edition. - Philippines : Inkwell Publishing Company, Inc., c2001. - 311 pages : black and white illustrations ; 26 cm., paperback. Includes index. ISBN: 9719245905 Subjects--Topical Terms: Economics.Economics -- Study and teaching. Dewey Class. No.: FIL 330 V714e 2001