APA (7e ed.) Bronvermelding

Philippines. Regional Development Council, Region II. (1977). Cagayan Valley regional development plan, 1978-1982. RDC II.

Chicago (17e ed.) Bronvermelding

Philippines. Regional Development Council, Region II. Cagayan Valley Regional Development Plan, 1978-1982. Tuguegarao City: RDC II, 1977.

MLA (9e ed.) Bronvermelding

Philippines. Regional Development Council, Region II. Cagayan Valley Regional Development Plan, 1978-1982. RDC II, 1977.