https://catalogue-scientifique.canada.ca/record=3636893~S6*frc
Rechercher Meltofte, Hans; Rechercher Blew, Jan; Rechercher Frikke, John; Rechercher Rosner, Hans-Ulrich; Rechercher Smit, Cor J
Common Secretariat for the Cooperation on the Protection of the Wadden Sea, 1994, ISBN : 9780950573175
Livre