000 003990000a22001450004500
008 140223b1963 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aB26 K3
082 _aB26 K3
100 _aHAFSTROM (John E.)
245 _aBasic concepts in modern mathematics.
260 _aReading, Mass.
_bAddison-Wesley
_c1963
440 _aAddison-Wesley Series in Mathematics.
650 _aABSTRACT
999 _c252170
_d252170