APA (7th ed.) Citation

Riška, A. Existence, appearance, and acquaintance.

Chicago Style (17th ed.) Citation

Riška, Augustín. Existence, Appearance, and Acquaintance.

MLA (9th ed.) Citation

Riška, Augustín. Existence, Appearance, and Acquaintance.

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