APA (7th ed.) Citation

Jarnuszkiewicz, J., & Banach, A. (1990). Ex. Libris Andrzeja Banacha.

Chicago Style (17th ed.) Citation

Jarnuszkiewicz, Jerzy, and Andrzej Banach. Ex. Libris Andrzeja Banacha. [Miejsce nieznane], 1990.

MLA (9th ed.) Citation

Jarnuszkiewicz, Jerzy, and Andrzej Banach. Ex. Libris Andrzeja Banacha. 1990.

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