APA (7th ed.) Citation

Lukáč, M., & Abaffy, D. Ing. Ján Hummel sedemdesiatročný.

Chicago Style (17th ed.) Citation

Lukáč, Michal, and Dušan Abaffy. Ing. Ján Hummel Sedemdesiatročný.

MLA (9th ed.) Citation

Lukáč, Michal, and Dušan Abaffy. Ing. Ján Hummel Sedemdesiatročný.

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