por Phillips, Charles [autor] | Phillips, Charles. 50 puzzles for creative thinking | Merlos, Silvina [traductor].
por Phillips, Charles [autor] | Phillips, Charles. 50 games for Lateral Thinking | Merlos, Silvina [traductor].
por Phillips, Charles [autor] | Phillips, Charles. Numerical thinking : 50 brain-training puzzles to change the way you think | Jáuregui Lorda, Graciela [traductor].