Philippines (Republic). Bureau of the Census and Statistics & Philippines (Commonwealth) Bureau of the Census and Statistics. (1941). Yearbook of Philippine statistics. Bureau of Print.
Chicago-viite (17. p.)Philippines (Republic). Bureau of the Census and Statistics ja Philippines (Commonwealth) Bureau of the Census and Statistics. Yearbook of Philippine Statistics. Manila: Bureau of Print, 1941.
MLA-viite (9. p.)Philippines (Republic). Bureau of the Census and Statistics ja Philippines (Commonwealth) Bureau of the Census and Statistics. Yearbook of Philippine Statistics. Bureau of Print, 1941.
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