By Pieterse, Cosmo.
London | Ibadan [etc.] Heinemann Educational Books 1968 .
[6], 309 p.

By McEwan, Peter J. M..
London | Ibadan, [etc.] Oxford U.P. 1968 .
xxiv, 517 p. 23 cm..

By McEwan, Peter J. M..
London | Ibadan [etc.] Oxford U.P. 1968 .
xxiv, 468 p. , For advanced and undergraduate levels. 23 cm..

By Anene, Joseph C..
Ibadan | London Ibadan U.P. | Nelson 1966 .
xviii, 555 p. , Col. maps on endpapers. 23 cm..