What should I do for recommendation letter? Help!

<p>Hi.
I'm graduating this winter as an undergrad student, and planning to apply in June for Fall semester Grad school.
But this grad school require me to send recommendation REFERENCES in JUNE, not the recommendation letters.</p>

<p>So my question is,
should I ask professors now if they can fill out my recommendation letter later when I apply which is in SUMMER?
I'm afraid they would say "I won't remember you" or what if they say "okay" and forget about me?
It would be great if I can send the letters to school directly, then I can ask them for letters now.
But since I have to provide references to the grad school that I'm applying, I don't know what to do here..
After graduation, should I come back to college in like March to meet my professors for the letters?</p>

<p>Help me!</p>