APA (7. basım) Alıntı

Forbes, W. C. (1977). The Philippine islands [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17. basım) Atıf

Forbes, William Cameron. The Philippine Islands [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

MLA (9th ed.) Atıf

Forbes, William Cameron. The Philippine Islands [microform]. Photoduplication Service, University of the Philippines Library, 1977.