Gaya APA

Newbigin, L. (1994). Open Secret, The : An Introduction to the Theology of Mission . Grand Rapids, Michigan, USA: William B. Eerdmans Publishing Company.

Gaya MLA

Newbigin, Lesslie. "Open Secret, The : An Introduction to the Theology of Mission". Grand Rapids, Michigan, USA: William B. Eerdmans Publishing Company, 1994. Academic.