Gaya APA
Irianto, Agus. (1999).
Pegantar Airline reservation .
Jakarta:
Gramedia Widiasarana Indonesia.
Gaya Chicago
Irianto, Agus.
Pegantar Airline reservation.
Jakarta:
Gramedia Widiasarana Indonesia,
1999.
Text.
Gaya MLA
Irianto, Agus.
Pegantar Airline reservation.
Jakarta:
Gramedia Widiasarana Indonesia,
1999.
Text.
Gaya Turabian
Irianto, Agus.
Pegantar Airline reservation.
Jakarta:
Gramedia Widiasarana Indonesia,
1999.
Print.