APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Duffus, Robert Luther. Mastering a Metropolis: Planning the Future of the New York Region. New York: Harper and Brothers, 1930.

MLA (9th ed.) Citation

Duffus, Robert Luther. Mastering a Metropolis: Planning the Future of the New York Region. Harper and Brothers, 1930.

Warning: These citations may not always be 100% accurate.