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