Gratzer, G. A. (2011). Train your brain: A year's worth of puzzles. AK Peters/CRC Press.
Chicago Style (17th ed.) CitationGratzer, George A. Train Your Brain: A Year's Worth of Puzzles. Boca Raton, Forida: AK Peters/CRC Press, 2011.
MLA (9th ed.) CitationGratzer, George A. Train Your Brain: A Year's Worth of Puzzles. AK Peters/CRC Press, 2011.
Warning: These citations may not always be 100% accurate.