Sandra A. Thompson, Joseph Sung-Yul Park & Charles N. Li 2014: A Reference Grammar of Wappo. University of California Publications in Linguistics, Vol 138. University of California Press. Berkeley.
Sandra A. Thompson, Joseph Sung-Yul Park & Charles N. Li 2014: A Reference Grammar of Wappo. University of California Publications in Linguistics, Vol 138. University of California Press. Berkeley.