ChristensenHarold T., “Child Spacing Analysis Via Record Linkage: New Data Plus a Summing Up from Earlier Reports,”Marriage and Family Living, Vol. XXV, August 1963, p. 274.
2.
MonahanThomas P., “Premarital Pregnancy in the United States: A Critical Review and Some New Findings,”Eugenics Quarterly, Vol. VII, September 1960, p. 145.
3.
MonahanThomas P., “Premarital Pregnancy in the United States: A Critical Review and Some New Findings,”Eugenics Quarterly, Vol. VII, September 1960, p. 144.
4.
Christensen, op. cit., p. 276.
5.
Public Health Concepts in Social Work Education, Proceedings of a seminar held at Princeton University, Princeton, New Jersey, March 4–9, 1962, Council on Social Work Education, New York, 1962, p. 128.