What does PMMR stand for?
PMMR stands for "Pittsburgh Mine Map Repository"
How to abbreviate "Pittsburgh Mine Map Repository"?
"Pittsburgh Mine Map Repository" can be abbreviated as PMMR
What is the meaning of PMMR abbreviation?
The meaning of PMMR abbreviation is "Pittsburgh Mine Map Repository"
What does PMMR mean?
PMMR as abbreviation means "Pittsburgh Mine Map Repository"
