Cita APA (7a ed.)

Barrett, W. (1958). Irrational man: A study in existential philosophy. Doubleday.

Cita Chicago Style (17a ed.)

Barrett, William. Irrational Man: A Study in Existential Philosophy. Garden City, NY: Doubleday, 1958.

Cita MLA (9a ed.)

Barrett, William. Irrational Man: A Study in Existential Philosophy. Doubleday, 1958.