Herrin, AlejandroPinlac, Gracia B.2024-11-202024-11-201981-03https://selib.upd.edu.ph/etdir/handle/123456789/1832enFertilityTrends and differentialsMetropolitan ManilaManilaCagayanIsabelaFertility studyStudyA study of fertility trends and differentials in Metropolitan Manila, Cagayan and Isabela (1970-1975)Thesis