APA Style
Geisler, N., Geisler, D. (2010).
Conversational Evangelism (Cetakan 1).
Yogyakarta:
Yayasan Gloria & Katalis.
MLA Style
Geisler, Norman., Geisler, David.
"Conversational Evangelism".
Cetakan 1
Yogyakarta:
Yayasan Gloria & Katalis,
2010.
Buku SMA Athalia.