The 4th Congress of the Inter Parliamentary Union (IPU) 1977
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1977
The 4th Congress of the Inter Parliamentary Union (IPU)
12. september WM: nikto Perforácia: 13¼
![[The 4th Congress of the Inter Parliamentary Union (IPU), typ COF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/COF-s.jpg)
