000 00411pam a2200145a 44500
082 _a511.077
_bZo75m
100 _aZoll, Edward Joseph
245 1 _aMODULAR SYSTEMS
_cAN INTRODUCTION TO STRUCTURE IN MATHEMATICS
260 _aN. Y.
_bMacmillan
_cc1965
300 _a108
440 _aUnderstanding Modern Mathematics
_v
650 _aArithmetic. Programmed Instruction
964 _gCIRC
997 _a78934 C
999 _c426793
_d426793