A History of the Ordnance Survey / 
edited by W.A. Seymour. 
 - Folkestone, Eng. :  Dawson,  1980. 
 - xiv, 394 p. :  ill. 
<br/><br/><label>ISBN: </label>0712909796 
<br/><br/><label>LCCN: </label>93034377 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Great Britain Ordnance Survey --History.