APA (7th ed.) Citation

Chopin, F. F., Biret, I., Sauer, M., & Chopin, F. (1992). Rondos and variations. HNH International.

Chicago Style (17th ed.) Citation

Chopin, Frederic Franciszek, Idil Biret, Martin Sauer, and Frederic Chopin. Rondos and Variations. [Munichn]: HNH International, 1992.

MLA (9th ed.) Citation

Chopin, Frederic Franciszek, et al. Rondos and Variations. HNH International, 1992.