Cita APA (7a ed.)

Duffus, R. L. (1930). Mastering a metropolis: Planning the future of the New York region. Harper and Brother Publ..

Cita Chicago Style (17a ed.)

Duffus, R. L. Mastering a Metropolis: Planning the Future of the New York Region. New York: Harper and Brother Publ., 1930.

Cita MLA (9a ed.)

Duffus, R. L. Mastering a Metropolis: Planning the Future of the New York Region. Harper and Brother Publ., 1930.