000 00382nam a2200157Ia 4500
003 LDD
020 _a0810806029
040 _cLDD
082 _a025.486 F327
100 _aFeinberg, Hilda
245 0 _aTitle Derivative indexing techniques
_ba comparative study
_cHilda Feinberg
260 _aN.J.
_bScarecrow
_c1973
300 _ax,297
901 _a314
_b12-03-1996
942 _2ddc
_cG
999 _c4633
_d4633