Opium and labour;  being a report on a documentary investigation into the extent and effects of opium-smoking among workers. 

 - Geneva,  1935. 
 - 67 p. 
<br/><br/> Microfilmed for preservation 
<br/><br/><label>LCCN: </label>l  36000040  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Opium abuse.<br/>Labor and laboring classes--East Asia.
<br/><br/><label>LC Class. No.: </label>HD4813  / .I4 ser B, no. 22 
<br/><br/><label>Dewey Class. No.: </label>330.82  178.8 
<br/><br/><label>National Library of Medicine Call No.: </label>WM 286  / I61o 1935 Film 7287 no. 8