What does USO stand for?
USO stands for "Unión Sindical Obrera"
How to abbreviate "Unión Sindical Obrera"?
"Unión Sindical Obrera" can be abbreviated as USO
What is the meaning of USO abbreviation?
The meaning of USO abbreviation is "Unión Sindical Obrera"
What does USO mean?
USO as abbreviation means "Unión Sindical Obrera"
