Placher, W. C. (1983). A history of christian theology: An introduction. The Westminster Press.
Lua i Stíl Chicago (17ú heag.)Placher, William C. A History of Christian Theology: An Introduction. Philadelphia, PA: The Westminster Press, 1983.
Lua MLA (9ú heag.)Placher, William C. A History of Christian Theology: An Introduction. The Westminster Press, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.