000 00302nam a2200133Ia 4500
008 160710s1951 xx 000 0 und d
082 _a371.42 J 62 P
100 _aJONES
245 _aPRINCIPAL OF GUIDENCE
250 _a4
260 _bMcGRAW-HILL BOOK CO.
_c1951
300 _a630
942 _2ddc
_cB
999 _c12503
_d12503