000 00302nam a2200133Ia 4500
008 240201s1991 xx 000 0 eng d
020 _a9781863112253
082 _a510 RIC
245 0 _aEXPLORING TIME - LOWER
260 _bRIC PUBLICATIONS
_c1991
300 _aVARIES
650 _aMATH
942 _2ddc
_cBK
999 _c62
_d62