APA (7th ed.) Citation

J. A. Williams & Adam Matthew Digital (Firm). (2018). Nigeria: Yoruba: Original papers, missionaries: J. A. Williams. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

J. A. Williams and Adam Matthew Digital (Firm). Nigeria: Yoruba: Original Papers, Missionaries: J. A. Williams. Marlborough, Wiltshire: Adam Matthew Digital, 2018.

MLA (9th ed.) Citation

J. A. Williams and Adam Matthew Digital (Firm). Nigeria: Yoruba: Original Papers, Missionaries: J. A. Williams. Adam Matthew Digital, 2018.