APA (7th ed.) Citation

Budrewicz, O., Flisak, J., & Zubrzycka, K. (1977). Polen für Entdecker. Interpress.

Chicago Style (17th ed.) Citation

Budrewicz, Olgierd, Jerzy Flisak, and Kordula Zubrzycka. Polen Für Entdecker. Warszawa: Interpress, 1977.

MLA (9th ed.) Citation

Budrewicz, Olgierd, et al. Polen Für Entdecker. Interpress, 1977.

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