Janda, A., & Heining, W. (2004). 1937-1958. Wienand.
Lua i Stíl Chicago (17ú heag.)Janda, Annegret, agus Willi Heining. 1937-1958. Köln: Wienand, 2004.
Lua MLA (8ú heag.)Janda, Annegret, agus Willi Heining. 1937-1958. Wienand, 2004.
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