Cita APA (7a ed.)

Richards, T. (1989). Clausal form logic: An introduction to the logic of computer reasoning. Addison-Wesley.

Cita Chicago Style (17a ed.)

Richards, Tom. Clausal Form Logic: An Introduction to the Logic of Computer Reasoning. Sydney [etc.]: Addison-Wesley, 1989.

Cita MLA (9a ed.)

Richards, Tom. Clausal Form Logic: An Introduction to the Logic of Computer Reasoning. Addison-Wesley, 1989.