Portney, K. E. (2003). Taking sustainable cities seriously: Economic development, the environment, and quality of life in American cities. Massachusetts International Press.
Chicago-Zitierstil (17. Ausg.)Portney, Kent E. Taking Sustainable Cities Seriously: Economic Development, the Environment, and Quality of Life in American Cities. Cambridge, Massachusetts: Massachusetts International Press, 2003.
MLA-Zitierstil (9. Ausg.)Portney, Kent E. Taking Sustainable Cities Seriously: Economic Development, the Environment, and Quality of Life in American Cities. Massachusetts International Press, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.