What does GTR stand for?
GTR stands for "Guide to Telephone Regulation"
How to abbreviate "Guide to Telephone Regulation"?
"Guide to Telephone Regulation" can be abbreviated as GTR
What is the meaning of GTR abbreviation?
The meaning of GTR abbreviation is "Guide to Telephone Regulation"
What does GTR mean?
GTR as abbreviation means "Guide to Telephone Regulation"
