commonapp recommendation forms

<p>So I'm going to ask the manager at an internship I did over the summer to write a recommendation letter for me. But, i can't find the appropriate recommendation form on commonapp. They only seem to have teacher evaluation forms. What is the proper protocol for asking an outside of school person to write a recommendation letter?</p>

<p>A4 paper with the title of company printed on the top. I think it is OK</p>