Cita APA (7th ed.)

Boyd, R. (2003). Critical reasoning and logic (First Edition.). Prentice Hall.

Cita Chicago (17th ed.)

Boyd, Robert. Critical Reasoning and Logic. First Edition. Upper Saddle River, New Jersey: Prentice Hall, 2003.

Cita MLA (9th ed.)

Boyd, Robert. Critical Reasoning and Logic. First Edition. Prentice Hall, 2003.