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