APA (7th ed.) Citation

Hilton, J., Chwalewik, W., Kania, I., & Piwko, M. J. (1989). Zaginiony horyzont. Śląsk.

Chicago Style (17th ed.) Citation

Hilton, James, Witold Chwalewik, Ireneusz Kania, and Marek Jerzy Piwko. Zaginiony Horyzont. Katowice: Śląsk, 1989.

MLA (9th ed.) Citation

Hilton, James, et al. Zaginiony Horyzont. Śląsk, 1989.

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