Nouvelles = Newsletter = Nachrichten = Nyheter.

MLA

Nouvelles = Newsletter = Nachrichten = Nyheter. Bruxelles: ISE, 1987.

APA

(1987). Nouvelles = Newsletter = Nachrichten = Nyheter. Bruxelles: ISE.

Chicago

Nouvelles = Newsletter = Nachrichten = Nyheter. Bruxelles: ISE, 1987.