Thring, M. W.  1915-2006, <br/><br/>
Air pollution :   based on papers given at a conference held at the University of Sheffield, September, 1956 /  
edited by M. W. Thring 
 - London :   Butterworths Scientific Publications,  1957. 
 - x, 248 p. :   il., mapas ;   23 cm. 
<br/><br/>Incluye referencias bibliográficas. 
<br/><br/><label>Materia: </label><br/>Contaminación del aire
<br/><br/><label>CDU. No.: </label>628.52  / T415