APA (7th ed.) Citation

Frycz Modrzewski, A., & Kumaniecki, K. (1953). Opera omnia. PIW.

Chicago Style (17th ed.) Citation

Frycz Modrzewski, Andrzej, and Kazimierz Kumaniecki. Opera Omnia. Warszawa: PIW, 1953.

MLA (8th ed.) Citation

Frycz Modrzewski, Andrzej, and Kazimierz Kumaniecki. Opera Omnia. PIW, 1953.

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