Newbigin, L. (1995). The open secret: An introduction to the theology of mission. William B. Eerdmans Pub. Co..
Lua i Stíl Chicago (17ú heag.)Newbigin, Lesslie. The Open Secret: An Introduction to the Theology of Mission. Grand Rapids: William B. Eerdmans Pub. Co., 1995.
Lua MLA (9ú heag.)Newbigin, Lesslie. The Open Secret: An Introduction to the Theology of Mission. William B. Eerdmans Pub. Co., 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.