APA (7th ed.) Citation

Korski, W., & Seweryn, T. (1943). Ex Libris Tadeusza Seweryna.

Chicago Style (17th ed.) Citation

Korski, Witold, and Tadeusz Seweryn. Ex Libris Tadeusza Seweryna. 1943.

MLA (9th ed.) Citation

Korski, Witold, and Tadeusz Seweryn. Ex Libris Tadeusza Seweryna. 1943.

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