What does DERF stand for?
DERF stands for "Design of Earth and Rock Fills"
How to abbreviate "Design of Earth and Rock Fills"?
"Design of Earth and Rock Fills" can be abbreviated as DERF
What is the meaning of DERF abbreviation?
The meaning of DERF abbreviation is "Design of Earth and Rock Fills"
What does DERF mean?
DERF as abbreviation means "Design of Earth and Rock Fills"
