Wilson, A. G., & Kirkby, M. J. (1980). Mathematics for Geographers and Planners (2nd ed.). Clarendon Press.
Chicago (17e ed.) BronvermeldingWilson, A. G., en M. J. Kirkby. Mathematics for Geographers and Planners. 2nd ed. Oxford: Clarendon Press, 1980.
MLA (9e ed.) BronvermeldingWilson, A. G., en M. J. Kirkby. Mathematics for Geographers and Planners. 2nd ed. Clarendon Press, 1980.
Let op: Deze citaties zijn niet altijd 100% accuraat.