APA (7th ed.) Citation

Krzywka, R., & Czernia, A. (1959). Ex Libris AC [Aleksandra Czerni].

Chicago Style (17th ed.) Citation

Krzywka, Ryszard, and Aleksander Czernia. Ex Libris AC [Aleksandra Czerni]. [S.l.], 1959.

MLA (9th ed.) Citation

Krzywka, Ryszard, and Aleksander Czernia. Ex Libris AC [Aleksandra Czerni]. 1959.

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