Toll, H. (1888). Landrath Alexander Graf Keyserling: [verf. von] Harald Baron Toll. Müller.
Lua i Stíl Chicago (17ú heag.)Toll, Harald. Landrath Alexander Graf Keyserling: [verf. Von] Harald Baron Toll. Riga: Müller, 1888.
Lua MLA (8ú heag.)Toll, Harald. Landrath Alexander Graf Keyserling: [verf. Von] Harald Baron Toll. Müller, 1888.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.