Provision of subscriptions to periodicals and collections followed by monographs - in French and in foreign languages, in printed and / or digital form, for the Paris Observatory, Paris, Meudon and Nançay sites (Cher).

Provision of subscriptions to periodicals and collections followed by monographs - in French and in foreign languages, in printed and / or digital form, for the Paris Observatory, Paris, Meudon and Nançay sites (Cher).