ISBN 83-7006-989-4 Poland Language: Polish     http://www.znak.com.pl/

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 87-00-45896-1 Denmark Language: Danish     http://www.gyldendal.dk

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 965-448-864-7 Israel Language: Hebrew

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 84-95980-10-X Spain Language: Catalan     http://www.edicionesb.es/

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 972-1-04857-7 Portugal Language: Portuguese

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 84-663-0392-8 Spain Language: Spanish     http://www.edicionesb.es/

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 9023439538 The Netherlands Language: Dutch     http://www.boekboek.nl

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 88-452-4861-5 Italy Language: Italian     http://www.rcs.it/rcslibri/bompiani/

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 3-404-92099-6 Germany Language: German     http://www.luebbe.de/

Uncle Petros and Goldbach’s Conjecture, World Editions

ISBN: 2-02-050561-4 France Language: French     http://www.christianbourgois-editeur.fr

Uncle Petros and Goldbach’s Conjecture, World Editions