APA (7th ed.) Citation

Sheldon, D. (2001). Eins + eins = drei. Ueberreuter.

Chicago Style (17th ed.) Citation

Sheldon, Dyan. Eins + Eins = Drei. Wien: Ueberreuter, 2001.

MLA (9th ed.) Citation

Sheldon, Dyan. Eins + Eins = Drei. Ueberreuter, 2001.

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