APA (7th ed.) Citation

Mahler, A., Mahler, G., Hajóssyová, M., & Lapšanský, M. (1989). Songs. Opus.

Chicago Style (17th ed.) Citation

Mahler, Alma, Gustav Mahler, Magdaléna Hajóssyová, and Marián Lapšanský. Songs. Bratislava: Opus, 1989.

MLA (9th ed.) Citation

Mahler, Alma, et al. Songs. Opus, 1989.