What does btk stand for?
btk stands for "Billion Tonne Kilometres"
How to abbreviate "Billion Tonne Kilometres"?
"Billion Tonne Kilometres" can be abbreviated as btk
What is the meaning of btk abbreviation?
The meaning of btk abbreviation is "Billion Tonne Kilometres"
What does btk mean?
btk as abbreviation means "Billion Tonne Kilometres"
