Chú thích Port_Harcourt

  1. ↑ Njoku, Onwuka N (tháng 10 năm 2008). “Eastern Nigeria Under British Rule” (PDF). Department of History, University of Nigeria (University of Nigeria, Nsukka): 23. 
  2. ↑ Isichei, Elizabeth Allo (1976). A history of the Igbo people. Macmillan. tr. 200. ISBN 0-312-37975-7. 
  3. ↑ Walker, Gilbert (1959). “Traffic and Transport in Nigeria”. Colonial research studies (Her Majesty's Stationery Office) (27): 28–29. 
  4. ↑ Jaekel, Francis (1997). Opening the nation to sea, air and road transportation 1—3. Michigan State Univ Press. tr. 125. ISBN 9-782-46314-0. 
  5. ↑ McCall, John Christensen (2000). Dancing histories: heuristic ethnography with the Ohafia Igbo. University of Michigan Press. tr. 75. ISBN 0-472-11070-5. 
  6. ↑ Ohadike, Don C. (1994). Anioma: a social history of the Western Igbo people. Ohio University Press. tr. 15. ISBN 0-821-41072-5. 
  7. ↑ Okafor, S.O. (tháng 1 năm 1973). “The Port Harcourt Issue: A Note on Dr Tamuno's Article” (PDF). African affairs. Royal African Society (Oxford University Press) 72 (286): 74. 
  8. ↑ Hudgens, Jim; Trillo, Richard (2003). The rough guide to West Africa (ấn bản 4). Rough Guides. tr. 1075. ISBN 1-843-53118-6. 
  9. Williams, Lizzie (2008). Nigeria: The Bradt Travel Guide. tr. 200.