APA (7. basım) Alıntı

De Villa, J. G. (1988). Philippine vacations and explorations. Devcon I.P.

Chicago Style (17. basım) Atıf

De Villa, Jill Gale. Philippine Vacations and Explorations. Manila: Devcon I.P, 1988.

MLA (9th ed.) Atıf

De Villa, Jill Gale. Philippine Vacations and Explorations. Devcon I.P, 1988.