Swart, M. F. (1998). The call of Africa: The reformed church in America mission in the Sub-Sahara, 1948-1998. Wm. B.Eerdmans.
Lua i Stíl Chicago (17ú heag.)Swart, Morrell F. The Call of Africa: The Reformed Church in America Mission in the Sub-Sahara, 1948-1998. Grand Rapids: Wm. B.Eerdmans, 1998.
Lua MLA (9ú heag.)Swart, Morrell F. The Call of Africa: The Reformed Church in America Mission in the Sub-Sahara, 1948-1998. Wm. B.Eerdmans, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.