APA (7th ed.) Citation

Špetko, J., & Vnuk, F. Labutie piesne.

Chicago Style (17th ed.) Citation

Špetko, Jozef, and František Vnuk. Labutie Piesne.

MLA (9th ed.) Citation

Špetko, Jozef, and František Vnuk. Labutie Piesne.

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