REFERENCES
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- Dudley, E. Rainbows and realities: Current trends in marriage and its alternatives. Futurist, 1979, 13 (1), 45–59.
- Johnson, W. D. Establishing a national center for the study of divorce. The Family Coordinator, 1977, 26, 331–336.
- Knox, D. Trends in marriage and the family—the 1980's. Family Relations, 1980, 29 (2), 1–6.
- Macklin, E. D. Heterosexual cohabitation among unmarried college students. The Family Coordinator, 1972, 21 (4), 463–472.
- Olson, D. H. Marriage of the future: Evolutionary or evolutionary change? The Family Coordinator, 1972, 21 (4), 383–394.
- Olson, D. H. L. Treating Relationships. Lake Mills, Iowa: Graphic Publishing Co., Inc., 1976.
- Ryder, R. G. & Kafka, J. S. & Olson, D. H. Separating and joint influences in courtship and early marriage. American Journal of Orthopsychiatry, 1971, 41, 450–464.
- Sager, C. J. Marriage Contracts and Couple Therapy. New York: Brunner/ Mazel, 1976.