Gödel, Escher, Bach: An Eternal Golden Braid
Douglas R. Hofstadter
Buy this book at Amazon.com or try Amazon.co.uk in England, Amazon.ca in Canada, Amazon.de in Germany, Amazon.fr in France, Amazon.it in Italy, Amazon.es in Spain. ASIN=0465026567, Category: Science, Language: E, cover: PB, pages: 777