APA (7th ed.) Citation

Edward Roper & Adam Matthew Digital (Firm). (2018). Nigeria: Yoruba: Original papers, missionaries: Rev. Edward Roper. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Edward Roper and Adam Matthew Digital (Firm). Nigeria: Yoruba: Original Papers, Missionaries: Rev. Edward Roper. Marlborough, Wiltshire: Adam Matthew Digital, 2018.

MLA (9th ed.) Citation

Edward Roper and Adam Matthew Digital (Firm). Nigeria: Yoruba: Original Papers, Missionaries: Rev. Edward Roper. Adam Matthew Digital, 2018.