Gaya APA
Widarso, W.
(2015).
Sailing Overseas on a Cruise Ship
.
Yogyakarta:
Penerbit Kanisius.
Gaya MLA
Widarso, Wisnubroto.
"Sailing Overseas on a Cruise Ship".
Yogyakarta:
Penerbit Kanisius,
2015.
Text.