APA (7th ed.) Citation

Sagan, F., Kovalenko, J., & Sagan, F. Dobrý deň, Francoise Saganová!

Chicago Style (17th ed.) Citation

Sagan, Françoise, Jurij Kovalenko, and Françoise Sagan. Dobrý Deň, Francoise Saganová!

MLA (9th ed.) Citation

Sagan, Françoise, et al. Dobrý Deň, Francoise Saganová!

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