APA (7th ed.) Citation

Ligeti, G., & Biret, I. (2003). Etudes: Books I and II. Naxos.

Chicago Style (17th ed.) Citation

Ligeti, György, and Idil Biret. Etudes: Books I and II. [S.l.]: Naxos, 2003.

MLA (9th ed.) Citation

Ligeti, György, and Idil Biret. Etudes: Books I and II. Naxos, 2003.

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