Walgrave, J. H. (1972). Unfolding revelation: The nature of doctrinal development. Westminster Press.
Lua i Stíl Chicago (17ú heag.)Walgrave, Jan Henricus. Unfolding Revelation: The Nature of Doctrinal Development. Philadelphia: Westminster Press, 1972.
Lua MLA (9ú heag.)Walgrave, Jan Henricus. Unfolding Revelation: The Nature of Doctrinal Development. Westminster Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.