I don't know that it could really be called a reference, but Joe Konrath has a blog that gives a decent overview, A Newbie's Guide to Publishing http://jakonrath.blogspot.com/, unfortunately the information is pretty scattered through the posts. He also wrote an Kindle book, The Newbie's Guide to Publishing (Everything A Writer Needs To Know), http://www.amazon.com/Newbies-Publishing-Everything-Writer-e....