00552nam a22002177a 4500 8407 OCLRC 20260730085408.0 181213t xxu||||| |||| 00| 0 eng d 9712336107 ISBN OCLRC GSL 330 M468 2001 C.1 Medina, Roberto G. Principles of Economics Roberto First Edition Manila, Philippines Rex Book Store 2001 ix, 286 p. ; 22 cm Economics BOOK GSL 330 M468 2001 8407 8407