Not to muck up the works here but . . . it's also important to indicate when the work was actually completed, especially in any field where research might have moved ahead significantly in 2 years. I'm in the humanities, and things don't change a whole lot over that time span usually, but if I cite a 2010 edition of a work that originally appeared in, say, 1985, our citation style requires you to indicate both dates.
This page shows the style for citing a reprint in Chicago Style, which is not the same as the situation you describe OP, but there is a similar principle at work.