000 00301nam a22001097a 4500
082 0 _a512.8
100 1 _aSignal, M. K.
245 1 3 _aAn approach to numbers :
_baxiomatic development of various number system
_cM. K. Signal
260 _a?
_b?
_c?
300 _a220p. ;
_c20 cm.
653 _aBasic notations
999 _c356754
_d356690