The fun way to learn to speak Chinese
With more than 1.2 billion speakers across the globe — and with nearly 3 million in the U.S. alone — Mandarin Chinese claims the top spot as the world’s most common language. If you want to learn this...
http://interlanguages.net/manual.html
COMPLETE MANUAL
OF THE AUXILIARY LANGUAGE
IDO
Revised by L. DE BEAUFRONT
In conformity with the decisions of the Ido Academy
IDO - LINGUO INTERNACIONA DI LA...