APA (7th ed.) Citation

Janus, H., & Nowak, Z. K rozvoju myslenia.

Chicago Style (17th ed.) Citation

Janus, H., and Zdzisław Nowak. K Rozvoju Myslenia.

MLA (9th ed.) Citation

Janus, H., and Zdzisław Nowak. K Rozvoju Myslenia.

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