Agrogeology in Africa 
Commonwealth science council / 23-27 June 1986, Zomba, Malawi 
 - London:  Commonwealth Science Council,  1986 
 - 263p. 
 - CSC technical publication series   226 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Geology Marine phosphorites 
<br/><br/><label>Universal Decimal Class. No.: </label>631:551](6)(082.2)   / M7