Population Center Foundation, National Population Library (Philippines), & Philippine Population Information Network Project. (1988). Union catalog of population literature in Philippine libraries: Third supplement. Population Center Foundation.
Citace podle Chicago (17th ed.)Population Center Foundation, National Population Library (Philippines), a Philippine Population Information Network Project. Union Catalog of Population Literature in Philippine Libraries: Third Supplement. Makati, Metro Manila: Population Center Foundation, 1988.
Citace podle MLA (9th ed.)Population Center Foundation, et al. Union Catalog of Population Literature in Philippine Libraries: Third Supplement. Population Center Foundation, 1988.
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