Crosby, Theo. <br/><br/>
The necessary monument / 
Theo Crosby. 
 - Studio Vista :  London,  1970. 
 - 127 p. :  ill. ;  24 cm. 
<br/><br/>p. 125-126. 
<br/><br/><label>ISBN: </label>0289797756 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Monuments--Conservation and restoration.