APA (7th ed.) Citation

Twardowski, J., & Kovalčík, V. Prosba.

Chicago Style (17th ed.) Citation

Twardowski, Jan, and Vlastimil Kovalčík. Prosba.

MLA (9th ed.) Citation

Twardowski, Jan, and Vlastimil Kovalčík. Prosba.

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