Barker, L. Mary. <br/><br/>
Pears cyclopaedia. 1975-76 : a book of background information and reference for everyday use 

 - London  Pelham Books  1975 
<br/><br/><label>ISBN: </label>0720708400 
<br/><br/><label>Dewey Class. No.: </label>030  B31P