000 00339nam a2200133Ia 4500
008 221001s1991 xx 000 0 eng d
020 _a0852267223
082 _a515.35 PRA
100 _aPrasad, Phoolan
245 0 _aPartial differential equations
260 _aNew Delhi
_bWiley Eastern
_c1991
300 _axi, 252p.
942 _2ddc
_cREF
999 _c26978
_d26978