APA (7th ed.) Citation

Breinholst, W., Vlk, V., & Vavro, M. Čo proti nespavosti?

Chicago Style (17th ed.) Citation

Breinholst, Willi, V. Vlk, and Milan Vavro. Čo Proti Nespavosti?

MLA (9th ed.) Citation

Breinholst, Willi, et al. Čo Proti Nespavosti?

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