1. Trojan Brand Condoms. Health Info Centre Directory [homepage on the internet] Church and Dwight Co; [Cited 2007 April 26]. Available from: http://www.trojancondoms.com/default.aspx?jumpFrame=health_center
2. Liefbroer, A.C., The Impact of Perceived Costs and Rewards of Childbearing on Entry into Parenthood: Evidence from a Panel Study. European Journal of Population. 2005: 21; 367-391.
3. Adoption.com. Adoption Basics [homepage on the internet] Gilbert, AZ Adoption.com; [Cited 2007 April 24]. Available from: http://www.crisispregnancy.com/birth-mother/what-is-adoption-2.html
4. Canadians For Choice. Abortion [homepage on the internet] Ottawa. Canadians For Choice; [Cited 2007 April 24]. Available from: http://www.canadiansforchoice.ca/options.html
5. Planned Parenthood. Abortion [homepage on the internet] Planned Parenthood Federation of America, Inc. [Cited 2007 April 24] Available from: http://www.plannedparenthood.org/index.htm
6. WAST, Dr. B. Lent & Dr. J. Brown, Department of Family Medicine, University of Western Ontario
7. Daly, Kerry and Michael Sobol. (1993) Adoption in Canada: Final Report. Guelph, Ont.: University of Guelph, National Adoption Study. Funded by National Welfare Grants.
8. Statistics Canada, Canadian Vital Statistics, Birth Database and Stillbirth Database. Reproductive Health: Pregnancies and Rates, Canada, 1974-1993. Updated Oct. 2007. Catalogue no. 82-568-XPB.