APA (7th ed.) Citation

Bonko, I., & Hlaváč, Ľ. Karol Kállay.

Chicago Style (17th ed.) Citation

Bonko, Ivan, and Ľudovít Hlaváč. Karol Kállay.

MLA (9th ed.) Citation

Bonko, Ivan, and Ľudovít Hlaváč. Karol Kállay.

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