Philippine Islands. Census Office. (1920). Census of the Philippine Islands taken under the direction of the Philippine Legislature in the year 1918. Bureau of Print.
Lua i Stíl Chicago (17ú heag.)Philippine Islands. Census Office. Census of the Philippine Islands Taken Under the Direction of the Philippine Legislature in the Year 1918. Manila: Bureau of Print, 1920.
Lua MLA (9ú heag.)Philippine Islands. Census Office. Census of the Philippine Islands Taken Under the Direction of the Philippine Legislature in the Year 1918. Bureau of Print, 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.