Ayerst, David <br/><br/>
Guardian. : biography of a newspaper 
David Ayerst 
 - London :  Collins,  1971 
 - 702 p., 18 p. of plates : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>000211329 5 
<br/><br/><label>LC Class. No.: </label>YVA