Cita APA (7a ed.)

Gruen, V. (1964). The heart of our cities. Simon and Schuster.

Cita Chicago Style (17a ed.)

Gruen, Victor. The Heart of Our Cities. New York: Simon and Schuster, 1964.

Cita MLA (9a ed.)

Gruen, Victor. The Heart of Our Cities. Simon and Schuster, 1964.