Cita APA (7a ed.)

Freeman, J. B. (1988). Thinking logically: Basic concepts for reasoning. Prentice-Hall.

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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