APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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