Groundwork of Nigerian History  
edited by Obaro Ikime. 
 - Ibadan:  Historical Society of Nigeria by Heinemann Educational Books,  1980. 
 - vii, 615 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9781299541 (pbk.) :  N22.50 9781299533 (hard) 
<br/><br/><label>LC Class. No.: </label>DT515.57  / .G76 1980