Philippines (Republic). Bureau of the Census and Statistics. (1972). Population, land area, density and percent change in three censal years 1948, 1960 and 1970: Philippines. [s.n.].
Chicago-Zitierstil (17. Ausg.)Philippines (Republic). Bureau of the Census and Statistics. Population, Land Area, Density and Percent Change in Three Censal Years 1948, 1960 and 1970: Philippines. Manila: [s.n.], 1972.
MLA-Zitierstil (9. Ausg.)Philippines (Republic). Bureau of the Census and Statistics. Population, Land Area, Density and Percent Change in Three Censal Years 1948, 1960 and 1970: Philippines. [s.n.], 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.