APA (7th ed.) Citation

Krzywka, R., & Lesiewicz, E. (1959). Ex Libris Emilii Lesiewicz.

Chicago Style (17th ed.) Citation

Krzywka, Ryszard, and Emilia Lesiewicz. Ex Libris Emilii Lesiewicz. [S.l.], 1959.

MLA (9th ed.) Citation

Krzywka, Ryszard, and Emilia Lesiewicz. Ex Libris Emilii Lesiewicz. 1959.

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