You'll find the words and music in the dt but here are the chords that we use. (I've just cut and pasted this, so I hope it works alright)
DONA DONA
Am E Am Em
On a wagon bound for market
Am Dm Am E
There's a calf with a mournful eye.
Am E Am E
High above him there's a swallow
Am Dm E Am
Winging swiftly through the sky.
G C
How the winds are laughing
Am G C
They laugh with all their might
G C E Am
Laugh and laugh the whole day through
E Am
And half the summer's night.
E Am
Dona dona dona dona
G C
Dona dona dona don
E Am
Dona dona dona dona
E Am
Dona dona dona don
Regards Marion