APA (7th ed.) Citation

American Institute of Planners & Ewald, W. R. (1968). Environment and policy: The next fifty years. Indiana Univ. Press.

Chicago Style (17th ed.) Citation

American Institute of Planners and William R. Ewald. Environment and Policy: The Next Fifty Years. Bloomington: Indiana Univ. Press, 1968.

MLA (9th ed.) Citation

American Institute of Planners and William R. Ewald. Environment and Policy: The Next Fifty Years. Indiana Univ. Press, 1968.