000 00308 a2200121 4500
080 _a33
_bP 485 P
245 1 _aPrinciples of economics
_bMicro
_cby W.L. Peterson
260 _aIllinois
_bRichard D. Irwin
_c1971
650 _aMicroeconomics
100 1 _aPeterson, W.L.
_d
300 _a256 pp.
901 _a127790
999 _c61207
_d61207