What does PDO stand for?
PDO stands for "Publications of the Dominion Observatory"
How to abbreviate "Publications of the Dominion Observatory"?
"Publications of the Dominion Observatory" can be abbreviated as PDO
What is the meaning of PDO abbreviation?
The meaning of PDO abbreviation is "Publications of the Dominion Observatory"
What does PDO mean?
PDO as abbreviation means "Publications of the Dominion Observatory"
