Não informado. (1953). Quarterly economic review of Nigeria. Economist Intelligence Unit.
Lua i Stíl Chicago (17ú heag.)Não informado. Quarterly Economic Review of Nigeria. London: Economist Intelligence Unit, 1953.
Lua MLA (8ú heag.)Não informado. Quarterly Economic Review of Nigeria. Economist Intelligence Unit, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.