APA (7th ed.) Citation

Rühmkorf, P., & Rühmkorf, P. (1978). Poesie. Rowohlt.

Chicago Style (17th ed.) Citation

Rühmkorf, Peter, and Peter Rühmkorf. Poesie. Reinbek b. Hamburg: Rowohlt, 1978.

MLA (8th ed.) Citation

Rühmkorf, Peter, and Peter Rühmkorf. Poesie. Rowohlt, 1978.

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