I recently did similar repairs to one of my guitars, just glue should do.
you'll want to make the crack in the top level, put a little bit of water on the crack, and then rub some woodglue on top of that, use as much as you think is necissary, the water kind of sucks the glue down in there somehow, and also makes the wood expand, essentially a natural clamp, pretty neat. as for the back, just straight woodglue and clamps.
Scott
|