APA (7th ed.) Citation

National Media Production Center. (1977). Region I: Ilocos Norte, Abra, Ilocos Sur, Mountain Province, Benguet, La Union and Pangasinan. National Media Production Center.

Chicago Style (17th ed.) Citation

National Media Production Center. Region I: Ilocos Norte, Abra, Ilocos Sur, Mountain Province, Benguet, La Union and Pangasinan. Manila: National Media Production Center, 1977.

MLA (9th ed.) Citation

National Media Production Center. Region I: Ilocos Norte, Abra, Ilocos Sur, Mountain Province, Benguet, La Union and Pangasinan. National Media Production Center, 1977.

Warning: These citations may not always be 100% accurate.