sample letter for reference request.

Dear Dr. xxxx
I am sorry to bathe you.Aslo I want to thank you for your ciiting our
paper,wwwwww, in your recent publication,yyyyyyyy.

Right now, I'm applying for the permanent resident status in the
united States of America. It requires the reference letters from
colleagues. As well known, you are one of the leading researchers in
the field. What's more, you read our paper. So, I think you are in
a very good position to write a letter for that purpose. The letter includes how you knew my work, what's your comments on my work, and if you support my application with the strength.

The attached are my CV, the recent published papers, and the
personal statement.

If you have any concerns on the letter, or a sample or a draft of
the letter is required,please let me know.

I am looking forward to hearing from you. Any of your efforts on
this matter is highly appreciated.

Sincerely

AAA