Gwinn, Robert P.,  c1974. <br/><br/>
The New Encyclopaedia Britannica / 
Gwinn, Robert P. 
 - 15th. 
 - Chicago :  Encyclopaedia Britannica, Inc,  c1974. 
 -  ill. ; colored ;  11 inch. 
<br/><br/><label>ISBN: </label>0-85229-473-5