Schiller, F., & Johnson, H. (1888). Schiller's ballads. D.C. Heath & company.
Lua i Stíl Chicago (17ú heag.)Schiller, Friedrich, agus Henry Johnson. Schiller's Ballads. Boston: D.C. Heath & company, 1888.
Lua MLA (8ú heag.)Schiller, Friedrich, agus Henry Johnson. Schiller's Ballads. D.C. Heath & company, 1888.
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