Cita APA (7th ed.)

Ruchlis, H., & Oddo, S. (1990). Clear thinking: A practical introduction. Prometheus Books.

Cita Chicago (17th ed.)

Ruchlis, Hyman, i Sandra Oddo. Clear Thinking: A Practical Introduction. Buffalo, NY: Prometheus Books, 1990.

Cita MLA (9th ed.)

Ruchlis, Hyman, i Sandra Oddo. Clear Thinking: A Practical Introduction. Prometheus Books, 1990.