Bongaarts, J. (1982) Infertility after age 30: a false alarm. Fam. Plann. Perspect. 14, 75.
Davis, K. (1972) The American family in relation to demographic change. In: Demographic and Social Aspects of Population Growth, p. 235. Edited by Westoff, C. & Parke, J. R.. Government Printing Office, Washington, DC.
Easterlin, R. A. (1980) Birth and Fortune: The Impact of Numbers on Personal Welfare. Basic Books, New York.
Federation Cecos, Schwartz, D & Mayaux, M. J. (1982) Female fecundity as a function of age. New Engl.J. Med. 306, 404.
Fuchs, V. R. (1983) How We Live. Harvard University Press, Cambridge, Mass.
Hendershot, G. E, Mosher, W. D. & Pratt, W. F. (1982) Infertility and age: an unresolved issue. Fam. Plann. Perspect. 14, 287.
Hepworth, P. (1980) Foster Care and Adoption in Canada. Canadian Council on Social Development, Ottawa.
Hobart, C. W. (1979) Courtship process: premarital sex. In: Courtship, Marriage and the Family in Canada. Edited by Ramu, G. N.. Macmillan, Toronto.
Jones, E. F., Forrest, J. D., Goldman, N., Henshaw, S. K., Lincoln, R., Rosoff, J. I., Westoff, C. F. & Wulf, D. (1985) Teenage pregnancy in developed countries: determinants and policy implications. Fam. Plann. Perspect. 17, 53.
Kinsey, A. C., Pomeroy, W. B. & Martin, C. E. (1948). Sexual Behavior in the Human Male. Saunders, Philadelphia.
Kinsey, A. C., Pomeroy, W. B. & Martin, C. E. (1953). Sexual Behavior in the Human Female. Saunders, Philadelphia.
Luckey, E. B. & Nass, G. D. (1969). A comparison of sexual attitudes and behavior in an international sample. J. Marr. & Fam. 31, 364.
Morgan, S. P. (1981) Intentions and uncertainty at later stages of childbearing: the United States, 1965 and 1970. Demography, 18, 267.
Murdock, G. P. (1949) Social Structure. Macmillan, New York.
Packard, V. (1968) The Sexual Wilderness. McKay, New York.
Pratt, W. F., Mosher, W. D., Bachrach, C. A. & Horn, M. C. (1984) Understanding U.S. fertility: findings of the national survey of family growth, cycle III. Popul. Bull. 39, 1.
Reiss, I. L. (1980) Family Systems in America. Holt, Rinehart and Winston, New York.
Romaniuc, A. (1984) Fertility in Canada: From Baby-boom to Baby-bust. Statistics Canada, Ottawa.
Ryder, N. B. (1974) The family in developed countries. Scient. Am. 231, 81.
Shryock, H. S. & Siegel, J. S. (1973) The Methods and Materials of Demography. US Bureau of the Census, Washington, DC.
Westoff, C.F. (1978) Marriage and fertility in the developed countries. Scient. Am. 239, 51.