yesfu, t. m. (1962). manpower and economic development in nigeria. the institute of national planning.
Lua i Stíl Chicago (17ú heag.)yesfu, t. m. Manpower and Economic Development in Nigeria. cairo: the institute of national planning, 1962.
Lua MLA (9ú heag.)yesfu, t. m. Manpower and Economic Development in Nigeria. the institute of national planning, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.