APA (7th ed.) Citation

Deák, L., Kružliak, I., & Okáľ, J. An Authentic Testimony.

Chicago Style (17th ed.) Citation

Deák, Ladislav, Imrich Kružliak, and Ján Okáľ. An Authentic Testimony.

MLA (9th ed.) Citation

Deák, Ladislav, et al. An Authentic Testimony.

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