APA način citiranja (7. izdanje)
Njoku, A., Uzukwu, E., & Jell-Bahlsen, S. (2014). Interface between Igbo theology and christianity. Cambridge Scholars Publishing.
Čikaški stil citiranja (17. izdanje)
Njoku, Akuma-Kalu, Elochukwu Uzukwu, i Sabine Jell-Bahlsen. Interface Between Igbo Theology and Christianity. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.
MLA način citiranja (9. izdanje)
Njoku, Akuma-Kalu, et al. Interface Between Igbo Theology and Christianity. Cambridge Scholars Publishing, 2014.
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