000 00295nam a2200121Ia 4500
008 220201s1964 xx 000 0 eng d
082 _a515
_bAYReference
100 _aAyres (Frank)
245 0 _aTheorya Problem of Calculus
260 _bunknown
_aBook Land
_c1964
300 _a345
942 _2ddc
999 _c1484
_d1484