Levy, J. M. (1991). Contemporary urban planning (2nd ed.). Prentice Hall.
Chicago Style aipamenaLevy, John M. Contemporary Urban Planning. 2nd ed. Englewood Cliffs, NJ: Prentice Hall, 1991.
MLA aipamenaLevy, John M. Contemporary Urban Planning. 2nd ed. Prentice Hall, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.