Cita APA (7a ed.)

(1968). Explorations into Urban Structure (3a ed.). University of Pennsylvania.

Cita Chicago Style (17a ed.)

Explorations into Urban Structure. 3a ed. Philadelphia: University of Pennsylvania, 1968.

Cita MLA (9a ed.)

Explorations into Urban Structure. 3a ed. University of Pennsylvania, 1968.

Precaución: Estas citas no son 100% exactas.