yesfu, t. m. (1962). manpower and economic development in nigeria. the institute of national planning.
芝加哥风格引文yesfu, t. m. Manpower and Economic Development in Nigeria. cairo: the institute of national planning, 1962.
MLA引文yesfu, t. m. Manpower and Economic Development in Nigeria. the institute of national planning, 1962.
警告：这些引文格式不一定是100％准确.