Παραπομπή σε μορφή APA (7η εκδ.)

David, I. P. (1977). Development of a statistical model for agricultural surveys in the Philippines [microform]. Photoduplicatipon Servcie. University of the Philippines Library.

Παραπομπή σε μορφή Chicago (17η εκδ.)

David, Isidro P. Development of a Statistical Model for Agricultural Surveys in the Philippines [microform]. Quezon City: Photoduplicatipon Servcie. University of the Philippines Library, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

David, Isidro P. Development of a Statistical Model for Agricultural Surveys in the Philippines [microform]. Photoduplicatipon Servcie. University of the Philippines Library, 1977.