APA (7th ed.) Citation

Marquez, N. (1999). Abra in focus: Its demographics and socio-economic profile. National Statistics Office.

Chicago Style (17th ed.) Citation

Marquez, Nelia. Abra in Focus: Its Demographics and Socio-economic Profile. Manila: National Statistics Office, 1999.

MLA (9th ed.) Citation

Marquez, Nelia. Abra in Focus: Its Demographics and Socio-economic Profile. National Statistics Office, 1999.