Philippines (Republic). Commission on Population & University of the Philippines (Diliman). Population Institute. (1972). Philippine family planning chartbook: 1971-. [s.n.].
Chicago-viite (17. p.)Philippines (Republic). Commission on Population ja University of the Philippines (Diliman). Population Institute. Philippine Family Planning Chartbook: 1971-. Manila: [s.n.], 1972.
MLA-viite (9. p.)Philippines (Republic). Commission on Population ja University of the Philippines (Diliman). Population Institute. Philippine Family Planning Chartbook: 1971-. [s.n.], 1972.
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