APA (7th ed.) Citation

Gigilewicz, E., & Wilk, S. (2011). Encyklopedia katolicka. Encyklopedia katolicka.

Chicago Style (17th ed.) Citation

Gigilewicz, Edward, and Stanisław Wilk. "Encyklopedia Katolicka." Encyklopedia Katolicka 2011.

MLA (9th ed.) Citation

Gigilewicz, Edward, and Stanisław Wilk. "Encyklopedia Katolicka." Encyklopedia Katolicka, 2011.

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