(2023). external_content.pdf. wbv Media GmbH & Co. KG.
Chicago Style (17th ed.) CitationExternal_content.pdf. wbv Media GmbH & Co. KG, 2023.
MLA (8th ed.) CitationExternal_content.pdf. wbv Media GmbH & Co. KG, 2023.
Warning: These citations may not always be 100% accurate.