APA (7th ed.) Citation

Bell-Gam, R. A., & Iyam, D. U. (1999). Nigeria (Rev. ed.). Clio Press.

Chicago Style (17th ed.) Citation

Bell-Gam, Ruby A., and David Uru Iyam. Nigeria. Rev. ed. Oxford [u.a.]: Clio Press, 1999.

MLA (9th ed.) Citation

Bell-Gam, Ruby A., and David Uru Iyam. Nigeria. Rev. ed. Clio Press, 1999.