http://www.archive.org/details/mutsundialectofc00masorich (Publisher version)
mutsun_mason1916_o.pdf (Publisher version), 8MB
Mason, J. A. (1916). The Mutsun dialect of Costanoan based on the vocabulary of De la Cuesta. Univ. of California Publications in American Archaeology and Ethnology, 11(7), 399-472.