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- [2] Population and birth-rate, illustrated from historical statistics. [J]. JOURNAL OF THE ROYAL STATISTICAL SOCIETY, 1900, 63 : 596 - 625
- [5] THE DECLINE IN THE CANADIAN BIRTH-RATE [J]. CANADIAN JOURNAL OF ECONOMICS & POLITICAL SCIENCE, 1937, 3 (01): : 40 - 57
- [9] IS DECLINE OF BIRTH-RATE A RATIONAL PROBLEM [J]. FORTSCHRITTE DER MEDIZIN, 1977, 95 (17) : 1111 - 1112