Kempton, P. H. S. . <br/><br/>
Industrial Nitrogen /  Textual Documents 
P. H. S. Kempton. 
 - 1st ed / 
 - London :  Sir Isaac Pitman & Sons,Ltd ,  1922. 
 - 105p ;  17 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Chemistry T/G-Chemistry 
<br/><br/><label>Dewey Class. No.: </label>546.17  / K 329 In