What does HHD stand for?
HHD stands for "Herbert Hoover Dike"
How to abbreviate "Herbert Hoover Dike"?
"Herbert Hoover Dike" can be abbreviated as HHD
What is the meaning of HHD abbreviation?
The meaning of HHD abbreviation is "Herbert Hoover Dike"
What does HHD mean?
HHD as abbreviation means "Herbert Hoover Dike"
