APA Style
Callahan, K, L. (1983).
Twelve keys to an effective church / Kennon L. Callahan. (1st Edition).
San Francisco:
Harper & Row.
MLA Style
Callahan, Kennon, L..
"Twelve keys to an effective church / Kennon L. Callahan.".
1st Edition
San Francisco:
Harper & Row,
1983.
Text.