Cita APA

Summers, G. J., & Summers, G. J. (1972). Test your logic: 50 puzzles in deductive reasoning. New York, New York: Dover.

Citación estilo Chicago

Summers, George J., y George J. Summers. Test Your Logic: 50 Puzzles in Deductive Reasoning. New York, New York: Dover, 1972.

Cita MLA

Summers, George J., y George J. Summers. Test Your Logic: 50 Puzzles in Deductive Reasoning. New York, New York: Dover, 1972.