Guide to reference material / 
Edited by A. J. Walford. 
 - 3rd ed. 
 - London :  Library Association,  1973. 
 - vii, 615 p. ;  26 cm. 
<br/><br/> Editor: 1959-1977 A.J. Walford. 
<br/><br/>Includes indexes. 
<br/><br/><label>ISBN: </label>0853653267 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference books--Bibliography.
<br/><br/><label>Dewey Class. No.: </label>025.52  / GUI 1973