American Drug index.    (1989) / 
edited by Norman F. Billups & Shirley M. Billups 
 - 33rd ed. 
 - St. Louis :  Facts and comparisons division, J. B. Lippincott company,  1989 
 - ix, 749 p. 
<br/><br/><label>ISBN: </label>0932686265 
<br/><br/><label>National Library of Medicine Call No.: </label>QV 772  / .A44 1989