What does OA stand for?
OA stands for "Osservazione Aerea"
How to abbreviate "Osservazione Aerea"?
"Osservazione Aerea" can be abbreviated as OA
What is the meaning of OA abbreviation?
The meaning of OA abbreviation is "Osservazione Aerea"
What does OA mean?
OA as abbreviation means "Osservazione Aerea"
