University of the Philippines (Manila). Population Institute & Philippines. Commission on Population. (1972). Country statement: The Philippines.
Lua i Stíl Chicago (17ú heag.)University of the Philippines (Manila). Population Institute agus Philippines. Commission on Population. Country Statement: The Philippines. 1972.
Lua MLA (9ú heag.)University of the Philippines (Manila). Population Institute agus Philippines. Commission on Population. Country Statement: The Philippines. 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.