Παραπομπή σε μορφή APA (7η εκδ.)

Walker, R. A. (1950). The planning function in urban government (2nd ed.). The University of Chicago Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Walker, Robert Averill. The Planning Function in Urban Government. 2nd ed. Chicago: The University of Chicago Press, 1950.

Παραπομπή σε μορφή MLA (9th εκδ.)

Walker, Robert Averill. The Planning Function in Urban Government. 2nd ed. The University of Chicago Press, 1950.