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- [6] DIFFERENTIALS IN RATE OF FERTILITY DECLINE - 1960-1970 FAMILY PLANNING PERSPECTIVES, 1974, 6 (02): : 103 - 107
- [8] RURAL-URBAN FERTILITY DIFFERENTIALS IN WESTERN-NIGERIA POPULATION STUDIES-A JOURNAL OF DEMOGRAPHY, 1969, 23 (03): : 363 - 378
- [10] SOME FACTORS ASSOCIATED WITH URBAN-RURAL FERTILITY DIFFERENTIALS IN MEXICO POPULATION STUDIES-A JOURNAL OF DEMOGRAPHY, 1967, 21 (03): : 283 - 293