It is possible to order the book with the following references:
Title:Theories d'or 10e édition.
Editor:Books on demand, Paris (web site: Books on Demand (Librairie)
The 9th edition is improved relative to the previous editions, and also rectifies a mistake in cosmology, and exposes a new cosmology. It also improves strongly the Platonist Mathematical Theory
This book can be ordered by internet, using the sites amazon.fr and chapitre.com.
It can also be ordered directly to the author with the following adress:
9 rue MALTE BRUN
Join your Email to your order, and also a cheque of 44 Euros (39 Euros+ 5 Euros postal fees,order Thierry DELORT) if you live in France and of 50 Euros if you do not live in France .
You can also order the book in most of bookshops, including in U.S.A using the above references of the book.