Langwell, W. H. <br/><br/>
The conservation of books and documents 

 - London  Sir Isaac Pitman  1957 
 - xxii,114p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>025.171  / L15