Mason, Lojn <br/><br/>
Machine Ruling 

 - London  Sir Isaac Pitman & Sons  1946 
 - iv, 233-272,(8)p. 
 - Printing Tehory And Practice Sr. 24 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>M14
<br/><br/><label>Dewey Class. No.: </label>M14  / H6.24