000 00300nam a2200133Ia 4500
008 200615s9999||||xx |||||||||||||| ||und||
020 _a978007061829
082 _a650
_bPRI-F
100 _aFRANK H ROBERT
245 0 _aPRINCIPLES OF ECONOMICS
250 _a1ST
260 _bTMH
_c2017
942 _cBK
999 _c27993
_d27993