Philippines (Republic). Bureau of the Census and Statistics & Philippines (Commonwealth) Bureau of the Census and Statistics. (1941). Yearbook of Philippine statistics. Bureau of Print.
Citazione stile Chigago Style (17a edizione)Philippines (Republic). Bureau of the Census and Statistics e Philippines (Commonwealth) Bureau of the Census and Statistics. Yearbook of Philippine Statistics. Manila: Bureau of Print, 1941.
Citatione MLA (9a ed.)Philippines (Republic). Bureau of the Census and Statistics e Philippines (Commonwealth) Bureau of the Census and Statistics. Yearbook of Philippine Statistics. Bureau of Print, 1941.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.