What does PTR stand for?
PTR stands for "Plate Tectonic Reconstruction"
How to abbreviate "Plate Tectonic Reconstruction"?
"Plate Tectonic Reconstruction" can be abbreviated as PTR
What is the meaning of PTR abbreviation?
The meaning of PTR abbreviation is "Plate Tectonic Reconstruction"
What does PTR mean?
PTR as abbreviation means "Plate Tectonic Reconstruction"
