Keesing Nederland bv
(Puzzelsport)

Visiting Address:
Hogehilweg 13
1101 CA Amsterdam
The Netherlands

Mail Address:
Postbus 1118
1000 BC Amsterdam
The Netherlands

Contact:
Jan Lam, managing editor
Tel: +31 (0)20 5641 840
Fax: +31 (0)20 5641 845
E-mail: j.lam@keesing.nl