Harries, P., & Maxwell, D. (2012). The spiritual in the secular: Missionaries and knowledge about Africa. William B. Eerdmans Publishing Company.
Lua i Stíl Chicago (17ú heag.)Harries, Patrick, agus David Maxwell. The Spiritual in the Secular: Missionaries and Knowledge About Africa. Grand Rapids, MI: William B. Eerdmans Publishing Company, 2012.
Lua MLA (9ú heag.)Harries, Patrick, agus David Maxwell. The Spiritual in the Secular: Missionaries and Knowledge About Africa. William B. Eerdmans Publishing Company, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.