APA (7. basım) Alıntı

(1990). Study on regional travel in the Philippines 1990. DOT/AIT.

Chicago Style (17. basım) Atıf

Study on Regional Travel in the Philippines 1990. [Quezon City]: DOT/AIT, 1990.

MLA (9th ed.) Atıf

Study on Regional Travel in the Philippines 1990. DOT/AIT, 1990.