Gaya APA
Newbigin, L. (1978).
The Open Secret : An Introduction To The Theology Of Mission .
England:
WM.B. Eerdmans Publishing Company.
Gaya MLA
Newbigin, Lesslie.
"The Open Secret : An Introduction To The Theology Of Mission".
England:
WM.B. Eerdmans Publishing Company,
1978.
Text.