APA (7th ed.) Citation

Helman, A., & Smejkal, Z. ZNAK.

Chicago Style (17th ed.) Citation

Helman, Alicja, and Zdeněk Smejkal. ZNAK.

MLA (9th ed.) Citation

Helman, Alicja, and Zdeněk Smejkal. ZNAK.

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