Langwell, W H <br/><br/>
Conservation of books and documents 

 - London:   Sir Isaac Pitman & Sons Ltd,   1958 
 - xxii, 114p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Documents
<br/><br/><label>Subjects--Index Terms: </label>Modern paper 
<br/><br/><label>Universal Decimal Class. No.: </label>025.85  / J7