000 00297nam a2200121Ia 4500
020 _a911910-26-3
250 _a9th ed
942 _cBK
245 _aThe Merck Index
_ban encyclopedia of chemicals and drugs
260 _aMerck & Co. Inc., (s.l.)
_c1976
082 _aR547.03 M.I.
300 _axv,1957
999 _c11398
_d11398