APA (7th ed.) Citation

Szymanowski, K., Pławner, P., & Witala, W. (2007). Violin & piano works. Dux.

Chicago Style (17th ed.) Citation

Szymanowski, Karol, Piotr Pławner, and Wojciech Witala. Violin & Piano Works. Warsaw: Dux, 2007.

MLA (9th ed.) Citation

Szymanowski, Karol, et al. Violin & Piano Works. Dux, 2007.