Gaya APA
Okigbo, P.N.C.. (1987).
Africa and the common market .
London:
Longman, Inc.
Gaya Chicago
Okigbo, P.N.C..
Africa and the common market.
London:
Longman, Inc,
1987.
Text.
Gaya MLA
Okigbo, P.N.C..
Africa and the common market.
London:
Longman, Inc,
1987.
Text.
Gaya Turabian
Okigbo, P.N.C..
Africa and the common market.
London:
Longman, Inc,
1987.
Print.