APA (7th ed.) Citation

Brahms, J., Matthies, S., & Köhn, C. (1998). Four hand piano music. HNH Internat.

Chicago Style (17th ed.) Citation

Brahms, Johannes, Silke-Thora Matthies, and Christian Köhn. Four Hand Piano Music. Munich, Germany: HNH Internat, 1998.

MLA (9th ed.) Citation

Brahms, Johannes, et al. Four Hand Piano Music. HNH Internat, 1998.