Where could I buy cloth diapers?

You can order them online or your local discount store, like Target. They carry a couple of styles, you can check these on links below. ; )
bumGenius 3.0 One-Size Cloth Diaper Features:

    * 3x3 snap design* adjusts the sizing to fit small, medium and large sizes (approximately 7-35 pounds)
    * Trim, snug and comfortable stretchy tabs* provide improved fit.
    * Wide slot makes it easy to stuff and remove insert
    * Slot cover* keeps your baby protected from wetness.
    * New waterproof insert stopper* prevents leaking at the tummy.
    * Diapers are bundled with two inserts, a newborn insert for newborns and a one-size insert for your older baby.

I found several cloth diapers for you and also some liners. Hope this helps!