Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

Sweet, David C. Models of Urban Structure. Lexington Books, 1972.