APA (7th ed.) Citation

Siegelová, E., & Chrenka, P. Tajomstvo úspechu.

Chicago Style (17th ed.) Citation

Siegelová, Eva, and P. Chrenka. Tajomstvo úspechu.

MLA (9th ed.) Citation

Siegelová, Eva, and P. Chrenka. Tajomstvo úspechu.

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