APA (7th ed.) Citation

Sieracki, B., & Pietrykowski, T. (1930). Ex Libris Tadeusz Pietrykowski: Qui Scit Scientia Scienti Est Proximus.

Chicago Style (17th ed.) Citation

Sieracki, Bernard, and Tadeusz Pietrykowski. Ex Libris Tadeusz Pietrykowski: Qui Scit Scientia Scienti Est Proximus. [S. l, 1930.

MLA (9th ed.) Citation

Sieracki, Bernard, and Tadeusz Pietrykowski. Ex Libris Tadeusz Pietrykowski: Qui Scit Scientia Scienti Est Proximus. 1930.

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