Encyclopaedia Britannica <br/><br/>
The Encyclopaedia Britannica ; Micropaedia ; Knowledge in depth (Volume 9-Humidity Ivory Coast ) 
/by Encyclopaedia Britannica 
 - 15th edition 
 - USA,  Encyclopaedia Britannica ;  1978. 
 - 1186p. 
<br/><br/><label>ISBN: </label>0852293305 
<br/><br/><label>Dewey Class. No.: </label>030  / ENC/T