Key, Arthur <br/><br/>
Gas works effluents and ammonia / 

 - London :  Institution of Gas Engineers,  1938. 
 - 151 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gas industry – by-products<br/>Industrial effluents<br/>Ammonia recovery from gas works
<br/><br/><label>Dewey Class. No.: </label>665.7 KEY