000 00378nam a2200193Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
082 _a510
082 _bPer
100 _aPerkins, E. J.
245 _aAids To Mathematics
260 _bCel
260 _c1972
300 _a136
300 _bpb
300 _c7.5x5.5
350 _a0
365 _b0
365 _dRuppes
999 _c63347
_d63347