The Third Testament has been translated into, and published in, a number of languages. The Martinus Institute has made contracts with publishers or distributers of the books in seven of these languages; these books can therefore be bought only in the countries in question.
The Dutch books and the Dutch Kosmos magazine are published and distributed by:
Stichting Martinus Center
Martinus' symbols in various sizes can be purchased here in the internet bookshop. You can also purchase flags and postcards here.