Cita APA (7th ed.)

Osborn, F. J. (1969). Green-belt cities (New ed.). Schocken Books.

Cita Chicago (17th ed.)

Osborn, Frederic James. Green-belt Cities. New ed. New York: Schocken Books, 1969.

Cita MLA (9th ed.)

Osborn, Frederic James. Green-belt Cities. New ed. Schocken Books, 1969.