Russell, C. H. (2006). Undaunted: A Norwegian woman in frontier Texas. Texas A&M University Press.
Chicago Style (17th ed.) ZitazioaRussell, Charles H. Undaunted: A Norwegian Woman in Frontier Texas. College Station: Texas A&M University Press, 2006.
MLA (9th ed.) ZitazioaRussell, Charles H. Undaunted: A Norwegian Woman in Frontier Texas. Texas A&M University Press, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.