Cita APA (7th ed.)

Duncan, O. D. (1972). Metropolis and region. Published for Resources for the Future by Johns Hopkins Press Ann Arbor, Mich. : University Microfilms.

Cita Chicago (17th ed.)

Duncan, Otis Dudley. Metropolis and Region. Baltimore: Published for Resources for the Future by Johns Hopkins Press Ann Arbor, Mich. : University Microfilms, 1972.

Cita MLA (8th ed.)

Duncan, Otis Dudley. Metropolis and Region. Published for Resources for the Future by Johns Hopkins Press Ann Arbor, Mich. : University Microfilms, 1972.