APA (7th ed.) Citation

Biedermann, H. (1999). Knaurs Lexikon der Symbole Digitale Bibliothek.

Chicago Style (17th ed.) Citation

Biedermann, Hans. "Knaurs Lexikon Der Symbole." Digitale Bibliothek 1999.

MLA (9th ed.) Citation

Biedermann, Hans. "Knaurs Lexikon Der Symbole." Digitale Bibliothek, 1999.

Warning: These citations may not always be 100% accurate.