Gaya APA

Keller, T. (2012). Center Church : Doing Balanced, Gospel-Centered Ministry in Your City . Grand Rapids, Michigan, USA: Zondervan Reflective.

Gaya MLA

Keller, Timothy. "Center Church : Doing Balanced, Gospel-Centered Ministry in Your City". Grand Rapids, Michigan, USA: Zondervan Reflective, 2012. Academic.