000 00324nam a2200121Ia 4500
008 220201s1973 xx 000 0 eng d
082 _bFEI
100 _aFeinburg, hilda
245 0 _aTitle derivative indexing techniques : a comaparative Study
260 _aNew york
_bScarecrow press
_c1973
300 _a297
942 _2ddc
999 _c20726
_d20726