books.google.co.jp - This book surveys the two main indigenous languages of Japan, Japanese and Ainu. No genetic relationship has been established between them, and structurally they differ significantly. Shibatani has therefore divided his study into two independent parts. The first is the most comprehensive study of the...http://books.google.co.jp/books/about/The_Languages_of_Japan.html?hl=ja&id=sD-MFTUiPYgC&utm_source=gb-gplus-shareThe Languages of Japan