Population Center Foundation. Population Information Division. (1988). Union catalog of population literature in Philippine libraries. Population Center Foundation.
Cita Chicago (17th ed.)Population Center Foundation. Population Information Division. Union Catalog of Population Literature in Philippine Libraries. Makati, Metro Manila: Population Center Foundation, 1988.
Cita MLA (9th ed.)Population Center Foundation. Population Information Division. Union Catalog of Population Literature in Philippine Libraries. Population Center Foundation, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.