Many of us who have been involved with the JWs often are asked questions about other groups, such as the Mormons. A good friend of mine put together a book several years ago entitled "Mormonism Against Itself," which contains dozens of photocopies from older Mormon publications. It's quite well done. It's been out of print for several years and he has authorized its free distribution on the Internet. For those interested in the book, it's available for download from this filesharing site:
http://www.filesend.net/download.php?f=844af0e15a3f16c6297321910b29efde
It's about 53 MB and is probably one of the best documented works I've seen on Mormonism around.