Klepper. On the Road with Texas Highways. Texas A&M University Press.
Lua i Stíl Chicago (17ú heag.)Klepper. On the Road with Texas Highways. Texas A&M University Press.
Lua MLA (9ú heag.)Klepper. On the Road with Texas Highways. Texas A&M University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.