WORTHINGTON , E . B . <br/><br/>
Science in the Development of Africa : A review of the contribution of physical and biological knowledge South of the Sahara . 

 - Dar es Salam :  Commission for Technical Co-operation in Africa South of the Sahara (C.C.T.A) ,  1957 . 
 - xix , 462 p . :  ill . : pictures , maps ; 25cm 
<br/><br/> includes bibliographical reference and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Dewey Class. No.: </label>509.6