Walker, R. A. The planning function in urban government. The university of Chicago press.
Chicago (17e ed.) BronvermeldingWalker, Robert Averill. The Planning Function in Urban Government. The university of Chicago press.
MLA (8e ed.) BronvermeldingWalker, Robert Averill. The Planning Function in Urban Government. The university of Chicago press.
Let op: Deze citaties zijn niet altijd 100% accuraat.