Some naturally occurring substances. 

 - Lyon :  International Agency for Research on Cancer,  1976. 
 - IARC monographs on the evaluation of carcinogenic risk of chemicals to man ;  v. 10 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carcinogens -- congresses--Carcinogens -- congresses
<br/><br/><label>National Library of Medicine Call No.: </label>W1 I21G v.10 1976  QZ 202 I353s 1975