APA (7 वां संस्करण) प्रशस्ति पत्र

(1982). Energy sectoral survey series. Planning Service, Ministry of Energy.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Energy Sectoral Survey Series. Makati, Metro Manila: Planning Service, Ministry of Energy, 1982.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Energy Sectoral Survey Series. Planning Service, Ministry of Energy, 1982.