APA (7th ed.) Citation

Gielniak, J., & Ostrowski, A. (1952). Ex Libris Andreae Ostrowski.

Chicago Style (17th ed.) Citation

Gielniak, Józef, and Andrzej Ostrowski. Ex Libris Andreae Ostrowski. [Kowary, 1952.

MLA (9th ed.) Citation

Gielniak, Józef, and Andrzej Ostrowski. Ex Libris Andreae Ostrowski. 1952.

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