Autor
Francia. Institut Géographique National
20
Comunidad Económica Europea Comisión
3
Association of African Geological Surveys
2
Unesco
2
Boniface, Pascal
1
Bruneau, Michel 1937-
1
Claverie, Jean-François
1
Duby, Georges, 1919-1996
1
Foz Casals, Montserrat
1
Induráin Pons, Jordi
1
Institut Geologique Dionyz Stúr
1
Kovalevsky, Pierre
1
López i Tossas, Emili
1
Melin, Béatrice
1
Mérienne, Patrick,
1
Selection du Reader's Digest
1
Sánchez i Vaque, Oriol
1
Tourist Association of Copenhagen
1
Trudel, Marcel
1