Cita APA (7th ed.)

Philbrick , A. K. (1967). This human world. John Wiley.

Cita Chicago (17th ed.)

Philbrick , Allen K. This Human World. New York: John Wiley, 1967.

Cita MLA (9th ed.)

Philbrick , Allen K. This Human World. John Wiley, 1967.