You're asking for a favor from us, and didn't even say "please" or "thank you" (I sure hope that you use those words when actually asking someone to write you a rec) or bother to take 30 seconds to do a search for information on what you're requesting. You're not going to be spoonfed everything. Time to be a grown up and do some work on your own.
There are literally 1,000 threads asking this same question. If you would've taken a mere seconds to glance through the threads, you would've seen this.
