Ermen. W.F.A. <br/><br/>
Materials used in sizing their chemical and physical properties, and simple methods for their technical analysis... /(by) W.F.A. Ermen.   
by W.F.A. Ermen. 
 - London  Constable  1912 
<br/><br/><label>Dewey Class. No.: </label>677.02825  / N12