  2010 - Las Nueve Cifras Y El Cambiante Cero Divertimentos Matematicos [Spanish Edition] (Paperback) ISBN-13: 9788497841351 ISBN-10: 8497841352 Genres: Nonfiction, Science & Math, Humor & Entertainment ?  2010 - El Palacio De Los Precisos Cristales Divertimentos Matemticos [Coleccion Juegos - Spanish Edition] (Paperback) ISBN-13: 9788497841368 ISBN-10: 8497841360 Genres: Nonfiction, Science & Math, Humor & Entertainment ?  2009 - A Jugar Con Mas Numeros/ to Play with More Numbers [Spanish Edition] (Paperback) ISBN-13: 9786074530438 ISBN-10: 6074530432 Genre: Children's Books ?  2002 - Classic Brain Teasers (Hardcover) ISBN-13: 9781402710674 ISBN-10: 1402710674 Genre: Humor & Entertainment 7  2000 - Challenging Brainteasers [Mensa] (Paperback) ISBN-13: 9780806928777 ISBN-10: 0806928778 Genres: Science & Math, Humor & Entertainment ?    A Jugar Con Numeros (Paperback) ISBN-13: 9789706432346 ISBN-10: 9706432345 Genres: Nonfiction, Engineering & Transportation ? |
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