What does COS stand for?
COS stands for "China Ornithological Society"
How to abbreviate "China Ornithological Society"?
"China Ornithological Society" can be abbreviated as COS
What is the meaning of COS abbreviation?
The meaning of COS abbreviation is "China Ornithological Society"
What does COS mean?
COS as abbreviation means "China Ornithological Society"