Boisen, H. B. (1882). Preparatory book of German prose. Ginn, Heath, and Company.
Lua i Stíl Chicago (17ú heag.)Boisen, Hermann B. Preparatory Book of German Prose. Boston: Ginn, Heath, and Company, 1882.
Lua MLA (8ú heag.)Boisen, Hermann B. Preparatory Book of German Prose. Ginn, Heath, and Company, 1882.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.