International Symposium on Environmental Change and Geographic Information Systems, Asahikawa, Hokkaido 1991
Sýni: Japan - Venjuleg frímerki - 1991 - International Symposium on Environmental Change and Geographic Information Systems, Asahikawa, Hokkaido - 1 frímerki.
1991
International Symposium on Environmental Change and Geographic Information Systems, Asahikawa, Hokkaido
23. ágúst WM: Ekkert Götun: 13¼ x 13
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