APA (7th ed.) Citation

(1977). Region 1: Ilocos Norte, Ilocos Sur, Mountain Province, Benguet, La Union, and Pangasinan. National Media Production Center.

Chicago Style (17th ed.) Citation

Region 1: Ilocos Norte, Ilocos Sur, Mountain Province, Benguet, La Union, and Pangasinan. Manila: National Media Production Center, 1977.

MLA (9th ed.) Citation

Region 1: Ilocos Norte, Ilocos Sur, Mountain Province, Benguet, La Union, and Pangasinan. National Media Production Center, 1977.

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