Lua APA (7ú heag.)

Hansen, J. (1981). A smile in his lifetime: Joseph Hansen (1. Auflage.). Holt, Rinehart and Winston.

Lua i Stíl Chicago (17ú heag.)

Hansen, Joseph. A Smile in His Lifetime: Joseph Hansen. 1. Auflage. New York: Holt, Rinehart and Winston, 1981.

Lua MLA (8ú heag.)

Hansen, Joseph. A Smile in His Lifetime: Joseph Hansen. 1. Auflage. Holt, Rinehart and Winston, 1981.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.