I can recommend The Backyard Beekeeper and Beekeeping for Dummies in the books dept. I have the first one and checked the second one out from the library I also subscribe to Bee Culture magazine which covers the latest in beekeeping news, has helpful articles about various parts of beekeeping and sometime includes an article on the plants.
That 6 miles means you have to be aware of what's around for them to forage on besides your property. And they usually only go that far if forage is scarce closer to home.
You can find most bee supply companies online. Also check with your County Extension Office if you have one. They can give you information on beekeeping in your area plus tell you if there's any beekeeping associations near you.