Willoughby, Westel Woodbury, 1867-1945.  <br/><br/>
Opium as an international problem / 
by W. W. Willoughby. 
 - Baltimore:  Johns Hopkins Press,  1925. 
 - 585 pages ;  24 cm. 
<br/><br/><label>ISBN: </label>040507526X 
<br/><br/><label>Subjects--Meeting Names: </label><br/>Opium Conference. 1st, Geneva, Nov. 3, 1924--Feb. 11, 1925.<br/>Opium Conference. 2d, Geneva, Nov. 17, 1924--Feb. 19, 1925.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Opium.