To be honest, i wouldnt want to stress the fact that you took a class at a community college. I think your other recommendations will be given more weight anyway. I also took a class (orgo) at a college that was not quite a community college but close and asked for a rec but then decided to not send it. I mean no offense to you or anyone who takes classes there (I actually am a strong advocate of getting some harder classes over with at a comm college!), Im just saying that its fine to take classes there but I wouldnt want to emphasize that I did by getting a rec from there, thats all. Hope that helped! 🙂