Eyo Ekpo, Bakker Dirk Photographer, Binns, B., Krichbaum Rollyn O., & Willett Frank. (1980). Treasures of ancient nigeria (First edition.). Alfred A. Knopf.
Čikaški stil citiranja (17. izdanje)Eyo Ekpo, Bakker Dirk Photographer, Betty Binns, Krichbaum Rollyn O., i Willett Frank. Treasures of Ancient Nigeria. First edition. New York: Alfred A. Knopf, 1980.
MLA način citiranja (9. izdanje)Eyo Ekpo, et al. Treasures of Ancient Nigeria. First edition. Alfred A. Knopf, 1980.
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