What does NGF stand for?
NGF stands for "Notes on Gemstone Fluorescence"
How to abbreviate "Notes on Gemstone Fluorescence"?
"Notes on Gemstone Fluorescence" can be abbreviated as NGF
What is the meaning of NGF abbreviation?
The meaning of NGF abbreviation is "Notes on Gemstone Fluorescence"
What does NGF mean?
NGF as abbreviation means "Notes on Gemstone Fluorescence"
