Lua APA (7ú heag.)
Heine, L. (2010). Problem solving in a foreign language. Mouton de Gruyter.
Lua i Stíl Chicago (17ú heag.)
Heine, Lena. Problem Solving in a Foreign Language. Berlin ; New York: Mouton de Gruyter, 2010.
Lua MLA (9ú heag.)
Heine, Lena. Problem Solving in a Foreign Language. Mouton de Gruyter, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.