Gaya APA
Keller, T. (2012).
Center Church: Doing Balanced, Gospel-Centered Ministry in Your City .
United States of America:
Zondervan.
Gaya MLA
Keller, Timothy.
"Center Church: Doing Balanced, Gospel-Centered Ministry in Your City".
United States of America:
Zondervan,
2012.
e-book.