APA

Fernandez J. M., Summers G. J. & Willis N. D. (2003). Classical logic puzzles. New York, NY: Sterling Publishing Co., Inc.

Chicago

Fernandez J.J Mendoza, Summers George J and Willis Norman D. 2003. Classical logic puzzles. New York, NY: Sterling Publishing Co., Inc.

Harvard

Fernandez J. M., Summers G. J. and Willis N. D. (2003). Classical logic puzzles. New York, NY: Sterling Publishing Co., Inc.

MLA

Fernandez J.J Mendoza, Summers George J and Willis Norman D. Classical logic puzzles. New York, NY: Sterling Publishing Co., Inc. 2003.