Frug, G. E. (1999). City making: Building communities without building walls. Princeton University Press.
Chicago-referens (17:e uppl.)Frug, Gerald E. City Making: Building Communities Without Building Walls. Princeton, N.J.: Princeton University Press, 1999.
MLA-referens (9:e uppl.)Frug, Gerald E. City Making: Building Communities Without Building Walls. Princeton University Press, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.