Style de citation APA (7e éd.)

Eyo, E., Held, A., & Held, U. (1977). Two thousand years, nigerian art. Federal Dept. of Antiquities.

Style de citation Chicago (17e éd.)

Eyo, Ekpo, Andr Held, et Ursula Held. Two Thousand Years, Nigerian Art. Lagos: Federal Dept. of Antiquities, 1977.

Style de citation MLA (9e éd.)

Eyo, Ekpo, et al. Two Thousand Years, Nigerian Art. Federal Dept. of Antiquities, 1977.