APA (7th ed.) Citation

Wiszniewski, K., & Birnbaum, K. (1941). Ex Libris Kazimiery Birnbaum.

Chicago Style (17th ed.) Citation

Wiszniewski, Kazimierz, and Kazimiera Birnbaum. Ex Libris Kazimiery Birnbaum. 1941.

MLA (9th ed.) Citation

Wiszniewski, Kazimierz, and Kazimiera Birnbaum. Ex Libris Kazimiery Birnbaum. 1941.

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