Heavy gas and risk assessment  proceedings of a Symposium on Heavy Gas, September 3-4, 1979, Frankfurt/Main 
edited by Sylvius Hartwig. 
 - Dordrecht :  D. Reidel Publishing Company,  1980. 
 - viii, 306 p. :  ill. ;  24 cm. 
<br/><br/> 'Symposium'Schwere Gase' partly sponsored by Battelle-Institut e.V.'  English or German. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><br/>engger. 
<br/><br/><label>ISBN: </label>9027711089 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gases--Environmental aspects--Congresses.<br/>Hazardous substances--Environmental aspects--Congresses.<br/>Air--Pollution--Congresses.