Diaz-Briquets, Sergio, 1943- Mortality in Cuba : trends and determinants, 1880-1971 / Sergio Diaz-Briquets - 5 microfiches ; 11 x 15 cm. Thesis (Ph.D.) - University of Pennsylvania, 1977 Subjects--Topical Terms: Mortality--Cuba. Subjects--Geographic Terms: Cuba--Statistics, Vital