Cita APA (7th ed.)

Tilden, F. (1962). The state parks, their meaning in American life. Knopf.

Cita Chicago (17th ed.)

Tilden, Freeman. The State Parks, Their Meaning in American Life. New York: Knopf, 1962.

Cita MLA (9th ed.)

Tilden, Freeman. The State Parks, Their Meaning in American Life. Knopf, 1962.