Heudorfer, Bonnie; Bluestone, Barry (2004). „The Greater Boston Housing Report Card” (pdf). Center for Urban and Regional Policy (CURP), Northeastern University. str. 6. Arhivirano iz originala na datum 2012-02-25. Pristupljeno 19. 02. 2007.
Heudorfer, Bonnie; Bluestone, Barry (2004). „The Greater Boston Housing Report Card” (pdf). Center for Urban and Regional Policy (CURP), Northeastern University. str. 6. Arhivirano iz originala na datum 2012-02-25. Pristupljeno 19. 02. 2007.