Παραπομπή σε μορφή APA (7η εκδ.)

Philippines. Human Settlements Regulatory Commission. (1980). General industry classification. The Commission.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Philippines. Human Settlements Regulatory Commission. General Industry Classification. Makati: The Commission, 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

Philippines. Human Settlements Regulatory Commission. General Industry Classification. The Commission, 1980.