European directory of acid-free and permanent book paper /
European Foundation for Library Cooperation.
Commission of the European Communities.
Brussels : EFLC,
1993-
Répertoire européen des papiers d'édition sans acide et permanents / European Foundation for Library Cooperation, Groupe de Lausanne.
"On the request  and with the support of the Commission of the European Communities, Directorate-General X, Audiovisual, Information, Communication, Culture".