APA (7th ed.) Citation

Groth, K., & Langhanke, R. (2019). Klaus-Groth-Lesebuch. Boyens Buchverlag.

Chicago Style (17th ed.) Citation

Groth, Klaus, and Robert Langhanke. Klaus-Groth-Lesebuch. Boyens Buchverlag, 2019.

MLA (9th ed.) Citation

Groth, Klaus, and Robert Langhanke. Klaus-Groth-Lesebuch. Boyens Buchverlag, 2019.

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