Cita APA (7th ed.)

Freeman, J. B. (1988). Thinking Logically: Basic Concepts for Reasoning. Prentice-Hall.

Cita Chicago (17th ed.)

Freeman, James B. Thinking Logically: Basic Concepts for Reasoning. Englewood Cliffs, N.J.: Prentice-Hall, 1988.

Cita MLA (9th ed.)

Freeman, James B. Thinking Logically: Basic Concepts for Reasoning. Prentice-Hall, 1988.