000 00347 a2200133 4500
020 _a0335142710
082 _a004.0151
_bOPE
090 _c6065
_d8250
245 _aChapter 2 describing functions
_bBlock I (Chapters 1-3)
260 _aWalton
_bOpen University
_c1988
_g1988
300 _a41p.
_c29cm
650 _aMathematical principles
942 _cL
999 _c34861
_d34861