The Merck index : an encyclopedia of chemicals, drugs, and biologicals / Susan Budavari, editor ; Maryadele J. O'Neil, associate editor ; Ann Smith, assistant editor ; Patricia E. Heckelman, editorial assistant. Print Budavari, Susan. Drugs Dictionaries. Chemicals Dictionaries. Biomolecules Dictionaries. RS51 .M4 1989 503 20 MER Ill. on lining papers. Rahway, N.J., U.S.A. : Merck, 1989. 1989. 1989 Text 1 v. (various pagings) : eng