What's the difference between the Researcher's Guide to American Genealogy version published in 2013 and the one published in 2000? (Please don't respond "The date." :) )
Is the 2013 version simply the 2000 one as a paperback?
I've looked around at various online booksellers and worldcat.org, but can't really tell if the 2013 one has different text or is just a different format...Thanks!