Jorgensen, P. (1963). German grammar in collaboration with Ove K. Calusen. New York University Press.
Lua i Stíl Chicago (17ú heag.)Jorgensen, Peter. German Grammar in Collaboration with Ove K. Calusen. [New York]: New York University Press, 1963.
Lua MLA (9ú heag.)Jorgensen, Peter. German Grammar in Collaboration with Ove K. Calusen. New York University Press, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.