Παραπομπή σε μορφή APA (7η εκδ.)

Usman, Z. (2022). Economic Diversification in Nigeria: The Politics of Building a Post-Oil Economy. Bloomsbury Academic.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Usman, Zainab. Economic Diversification in Nigeria: The Politics of Building a Post-Oil Economy. London: Bloomsbury Academic, 2022.

Παραπομπή σε μορφή MLA (9th εκδ.)

Usman, Zainab. Economic Diversification in Nigeria: The Politics of Building a Post-Oil Economy. Bloomsbury Academic, 2022.