Citazione Stile APA (7a Edizione)

Orovwuje, B. O., & Okoli, E. U. (2015). Essential Christian religious studies for senior secondary schools (3. edition.). Tonad Publishers Limited.

Citazione stile Chigago Style (17a edizione)

Orovwuje, Bosede Olalusi, e Edmund Ugochukwu Okoli. Essential Christian Religious Studies for Senior Secondary Schools. 3. edition. Ikeja, Lagos: Tonad Publishers Limited, 2015.

Citatione MLA (9a ed.)

Orovwuje, Bosede Olalusi, e Edmund Ugochukwu Okoli. Essential Christian Religious Studies for Senior Secondary Schools. 3. edition. Tonad Publishers Limited, 2015.