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