APA (7th ed.) Citation

Feustel, G., Bžochová-Wild, J., & Popovič, I. Till a Hopka.

Chicago Style (17th ed.) Citation

Feustel, Günther, Jana Bžochová-Wild, and Ivan Popovič. Till a Hopka.

MLA (9th ed.) Citation

Feustel, Günther, et al. Till a Hopka.

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