Which rear wheel bearing do I need?

I just noticed yesterday while working on my Civic that my rear wheel bearing is on its way out, not bad yet, but it's got one spot that it kinda sticks, so I just want to get both of them done. Problem is, I can't figure out which bearing it is that I need. Advanceauto.com lists 7 different bearings, can you guys help me figure out which one(s) I need?
To get to what I'm looking at, put in a 92-95 civic si as your car, and then choose "wheel and tire parts" and then "wheel bearing - rear". Some of them say auto/manual tranny, so those should be front bearings, right? A couple of them are complete hubs, I've got stock rear discs. That only leaves National Ball Bearing part 510015 and a Motor City part, but National bearing looks like a front bearing? And the motor city one doesn't have a pic.
Most of the guys at the local advance don't know anything about Hondas, so if I can walk in and say "this is the part number I need", it'll go a heck of a lot better. Or if I could order them off rockauto, that would be the best bet, but I only see front bearings there. Also, do they need to be pressed on?
Thanks!!!
To get to what I'm looking at, put in a 92-95 civic si as your car, and then choose "wheel and tire parts" and then "wheel bearing - rear". Some of them say auto/manual tranny, so those should be front bearings, right? A couple of them are complete hubs, I've got stock rear discs. That only leaves National Ball Bearing part 510015 and a Motor City part, but National bearing looks like a front bearing? And the motor city one doesn't have a pic.
Most of the guys at the local advance don't know anything about Hondas, so if I can walk in and say "this is the part number I need", it'll go a heck of a lot better. Or if I could order them off rockauto, that would be the best bet, but I only see front bearings there. Also, do they need to be pressed on?
Thanks!!!