APA (7th ed.) Citation

Gugenberger & Gugenberger, T. Z dejín žilinskej Sloveny.

Chicago Style (17th ed.) Citation

Gugenberger and Tomáš Gugenberger. Z Dejín žilinskej Sloveny.

MLA (9th ed.) Citation

Gugenberger and Tomáš Gugenberger. Z Dejín žilinskej Sloveny.

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