Grindal, G. (2012). Thea Rønning: Young woman on a mission. Lutheran University Press.
Lua i Stíl Chicago (17ú heag.)Grindal, Gracia. Thea Rønning: Young Woman on a Mission. Minneapolis, Minnesota: Lutheran University Press, 2012.
Lua MLA (9ú heag.)Grindal, Gracia. Thea Rønning: Young Woman on a Mission. Lutheran University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.