Thüringer Landesfremdenverkehrsverband e. V. (1992). Beautiful Thuringia is always worth visiting (2. Aufl.). Druckhaus Erfurt.
Citazione stile Chigago Style (17a edizione)Thüringer Landesfremdenverkehrsverband e. V. Beautiful Thuringia Is Always Worth Visiting. 2. Aufl. Erfurt: Druckhaus Erfurt, 1992.
Citatione MLA (8a ed.)Thüringer Landesfremdenverkehrsverband e. V. Beautiful Thuringia Is Always Worth Visiting. 2. Aufl. Druckhaus Erfurt, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.