Köstler, M. E. (2001). Shopping Matters. Cornelsen.
Lua i Stíl Chicago (17ú heag.)Köstler, Maria Elisabeth. Shopping Matters. Berlin: Cornelsen, 2001.
Lua MLA (8ú heag.)Köstler, Maria Elisabeth. Shopping Matters. Cornelsen, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.