Key, A.  <br/><br/>
Gas works effluents and ammonia  (Book) 

 - 2nd ed. 
 - London  The Institution of Gas Engineers  1956 
 - 197 p.  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Factory and trade waste Gas manufacture and works-By products
<br/><br/><label>Universal Decimal Class. No.: </label>628.5 : 661.51 KEY  / 11273