ebrary, Inc, & Perttula, T. K. (2004). The prehistory of Texas. Texas A&M University Press.
Chicago-čujuhus (17. p.)ebrary, Inc, juo Timothy K. Perttula. The Prehistory of Texas. College Station: Texas A&M University Press, 2004.
MLA-čujuhus (9. p.)ebrary, Inc, juo Timothy K. Perttula. The Prehistory of Texas. Texas A&M University Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.