Livre Méthode Trachtenberg

Hachette

The Trachtenberg Speed System of Basic Mathematics

Independently published

Au-delà de Trachtenberg                          

THE TRACHTENBERG METHOD: WITH MORE MENTAL AND VEDIC MATH TIPS, SECRETS, AND SHORTCUTS (English Edition)

Hal Leonard

Methode voor mallets 1                          

Princeton University Press

[( The Craft of International History: A Guide to Method )] [by: Marc Trachtenberg] [Feb-2006]