Philippines (Republic). Bureau of the Census and Statistics. (1952). Digest of Philippine statistics. s.n.].
Chicago-referens (17:e uppl.)Philippines (Republic). Bureau of the Census and Statistics. Digest of Philippine Statistics. [Manila: s.n.], 1952.
MLA-referens (9:e uppl.)Philippines (Republic). Bureau of the Census and Statistics. Digest of Philippine Statistics. s.n.], 1952.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.