APA (7th ed.) Citation

Spengler, C. (2019). Schläfst du schon? Thienemann.

Chicago Style (17th ed.) Citation

Spengler, Constanze. Schläfst Du Schon? Stuttgart: Thienemann, 2019.

MLA (9th ed.) Citation

Spengler, Constanze. Schläfst Du Schon? Thienemann, 2019.

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