Reply To: Publisher not identified
The publisher is often listed on the front or back cover the book or on a separate page from the copyright page (maybe with the title of the book and the author info on it). In this case, it is pretty obvious to me that Houghton Mifflin Harcourt is the publisher - one of the covers may have the city. If the covers don't have any information, you could use the Orlando, Florida address as the city/state.
Cindi