Cita APA (7th ed.)

(1968). Environment far man: The next fifty years. Indiana University.

Cita Chicago (17th ed.)

Environment Far Man: The Next Fifty Years. London: Indiana University, 1968.

Cita MLA (9th ed.)

Environment Far Man: The Next Fifty Years. Indiana University, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.