Παραπομπή σε μορφή APA (7η εκδ.)

Wester, P. J. (1977). Zamboanga Province: Its natural resources and opportunities for agricultural development [microform]. Photoduplication Service, University of the Philippines Library.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wester, Peter Johnson. Zamboanga Province: Its Natural Resources and Opportunities for Agricultural Development [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wester, Peter Johnson. Zamboanga Province: Its Natural Resources and Opportunities for Agricultural Development [microform]. Photoduplication Service, University of the Philippines Library, 1977.