Ono, Yoneichi and Okuda, Osami. 1999.0. Hokkaidoo no Kotoba [The Languages of Hokkaido]. Sapporo: The Hokkaido Shimbun Press.
@book{12221147808, address = {Sapporo}, author = {Ono, Yoneichi and Okuda, Osami}, booktitle = {Hokkaidoo no Kotoba [The Languages of Hokkaido]}, publisher = {The Hokkaido Shimbun Press}, title = {Hokkaidoo no Kotoba [The Languages of Hokkaido]}, year = {1999.0} }