ebrary, Inc, & Okpara, J. O. (2007). Management and economic development in sub-Saharan Africa: Theoretical and applied perspectives. Adonis & Abbey Publishers Ltd..
芝加哥风格引文ebrary, Inc, 与 John O. Okpara. Management and Economic Development in Sub-Saharan Africa: Theoretical and Applied Perspectives. London: Adonis & Abbey Publishers Ltd., 2007.
MLA引文ebrary, Inc, 与 John O. Okpara. Management and Economic Development in Sub-Saharan Africa: Theoretical and Applied Perspectives. Adonis & Abbey Publishers Ltd., 2007.
警告：这些引文格式不一定是100％准确.