1. Bay Area Census. “City of Palo Alto, Santa Clara County”.
2. Triple Bottom Line: A business metaphor for a social construct;Brown,2006
3. Canadian Community Health Survey – Annual Component, Statistics Canada, http://www23.statcan.gc.ca/imdb/p2SV.pl?Function=getSurvey&SDDS=3226.
4. The impact of the aging population on the health workforce in the United States: Summary of key findings;Center for Health Workforce Studies, School of Public Health, University at Albany,2006
5. Impact of the aging baby boom population on Palo Alto's social and community services;Community Services Department, City of Palo Alto,2006