APA (7 वां संस्करण) प्रशस्ति पत्र

Philippines (Republic). Bureau of the Census and Statistics. (1970). 1970 census of population and housing - Camarines Sur. [s.n.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Philippines (Republic). Bureau of the Census and Statistics. 1970 Census of Population and Housing - Camarines Sur. Manila: [s.n, 1970.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Philippines (Republic). Bureau of the Census and Statistics. 1970 Census of Population and Housing - Camarines Sur. [s.n, 1970.