Olago, S. (1997). Breaking into the 21st century: A business guide for Kenyans. Covenant.
Čikaški stil citiranja (17. izdanje)Olago, Sam. Breaking into the 21st Century: A Business Guide for Kenyans. Nairobi: Covenant, 1997.
MLA način citiranja (9. izdanje)Olago, Sam. Breaking into the 21st Century: A Business Guide for Kenyans. Covenant, 1997.
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