Gaya APA
Bonnke, R.
(2007).
Time is running out (waktunya hampir habis)
(
Cet.1)
.
Yogyakarta:
Yayasan Andi.
Gaya MLA
Bonnke, Reinhard.
"Time is running out (waktunya hampir habis)".
Cet.1
Yogyakarta:
Yayasan Andi,
2007.
Text.