APA (7th ed.) Citation

Štefanová, E. Earth Day - Deň Zeme.

Chicago Style (17th ed.) Citation

Štefanová, Ela. Earth Day - Deň Zeme.

MLA (9th ed.) Citation

Štefanová, Ela. Earth Day - Deň Zeme.

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