APA (7th ed.) Citation

Helman, A., & Pitrus, A. Ruch.

Chicago Style (17th ed.) Citation

Helman, Alicja, and Andrzej Pitrus. Ruch.

MLA (9th ed.) Citation

Helman, Alicja, and Andrzej Pitrus. Ruch.

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