Particulate polycyclic organic matter 

 - Washington, D.C.:  National Academy of Science,  1972. 
 - x111, 361 p. :   ill. ;   23 cm. 
<br/><br/> The work on which this publication is based was performed pursuant to contract no. CPA. 70-42 with the Environmental Protection Agency. 
<br/><br/>p. 307-354 
<br/><br/><label>ISBN: </label>0309020271 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution--Physiological effect.<br/>Polycyclic compounds--Toxicology.