APA Citation

Schweppe, D., & Seifert-Kressbronn, R. Knock on the rock.

Chicago Style Citation

Schweppe, Dirk, and Rudi Seifert-Kressbronn. Knock On the Rock.

MLA Citation

Schweppe, Dirk, and Rudi Seifert-Kressbronn. Knock On the Rock.

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