APA (7e ed.) Bronvermelding

Sweet, D. C. (1972). Models of urban structure. D.C. Heath.

Chicago (17e ed.) Bronvermelding

Sweet, David C. Models of Urban Structure. Lexington, Mass.: D.C. Heath, 1972.

MLA (8e ed.) Bronvermelding

Sweet, David C. Models of Urban Structure. D.C. Heath, 1972.