Gaya APA
Hannafin, M., Sarna, H.
(2007).
Cruises & Ports of Call
.
Hoboken, New Jersey:
WiIley Publishing.
Gaya MLA
Hannafin, Matt., Sarna, Heidi.
"Cruises & Ports of Call".
Hoboken, New Jersey:
WiIley Publishing,
2007.
Book.