The Merck index :  an encyclopedia of chemicals and drugs. 

 - 8th ed. / paul G. Stecher, editor.  8th ed. / paul G. Stecher, editor. 
 - Rahway, NJ :  Merck,  1968. 
<br/><br/> First ed. published in 1889 under title: Merck's index of fine chemicals and drugs for the materia medica and the arts; 2d ed. under title: Merck's 1896 index; 3d ed. under title: Merck's 1907 index; 4th ed. (1930), under title: Merck's index; 6th-7th ed. (1952-60), under title: The Merck index of chemicals and drugs. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>68012252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Materia medica.<br/>Drugs.
<br/><br/><label>LC Class. No.: </label>RS356  / .M524 1968 
<br/><br/><label>Dewey Class. No.: </label>615/.1/03