The Merck index : an encyclopedia of chemicals and drugs / Paul G. Stecher, editor : Martha Windholz, associate editor : Dolores S. Leahy, assistant editor. - 8th ed. - Rahway, N. J. : Merck, 1968. - xii, 1713 p. : ill. ; 25 cm. Subjects--Topical Terms: Dictionaries, Pharmaceutic.