1.
Culturele Veranderingen in Nederland 1979 - CV'79 ; Cultural changes in the Netherlands 1979 - CV'79
2.
3.
Culturele Veranderingen in Nederland 1998 - CV'98 ; Cultural changes in the Netherlands 1998 - CV'98
Culturele Veranderingen in Nederland 1996 - CV'96 ; Cultural changes in the Netherlands 1996 - CV'96