What does UIS stand for?
UIS stands for "Union International de Speleology"
How to abbreviate "Union International de Speleology"?
"Union International de Speleology" can be abbreviated as UIS
What is the meaning of UIS abbreviation?
The meaning of UIS abbreviation is "Union International de Speleology"
What does UIS mean?
UIS as abbreviation means "Union International de Speleology"
