000 00270nam a2200109Ia 4500
008 220201s1960 xx 000 0 eng d
100 _aFarsyth,AR
245 0 _aCalculus of variaition
260 _bNew Delhi:O.oner publication inc.
_c1960
300 _a565
942 _2ddc
999 _c71844
_d71844