Cita APA (7a ed.)

Ewald, W. R. (1967). Environment for man: The next fifty years. Indiana University Press.

Cita Chicago Style (17a ed.)

Ewald, William R. Environment for Man: The Next Fifty Years. Bloomington: Indiana University Press, 1967.

Cita MLA (9a ed.)

Ewald, William R. Environment for Man: The Next Fifty Years. Indiana University Press, 1967.