Thompson, S. A., Park, J. S., & Li, C. N. (2006). A reference grammar of Wappo. University of California Press.
Chicago-čujuhus (17. p.)Thompson, Sandra A., Joseph Sung-Yul Park, juo Charles N. Li. A Reference Grammar of Wappo. Berkeley: University of California Press, 2006.
MLA-čujuhus (9. p.)Thompson, Sandra A., et al. A Reference Grammar of Wappo. University of California Press, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.