1.
International Social Survey Programme 1999 (Netherlands)
2.
3.
4.
International Social Survey Programme 2001 (Netherlands)
EVS - European Values Study 1999 - Belgien ; EVS - European Values Study 1999 - Belgium
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6.
7.
8.
9.
EVS - European Values Study 1999 - Luxemburg ; EVS - European Values Study 1999 - Luxembourg
EVS - European Values Study 1999 - Niederlande ; EVS - European Values Study 1999 - Netherlands
EVS - European Values Study 1999 - Niederlande ... : EVS - European Values Study 1999 - Netherlands ...
EVS - European Values Study 1999 - Luxemburg ... : EVS - European Values Study 1999 - Luxembourg ...
EVS - European Values Study 1999 - Belgien ... : EVS - European Values Study 1999 - Belgium ...