APA (7th ed.) Citation

Grabowski, E., & Ondrusz, J. (1964). Ex Libris Józef Ondrusz.

Chicago Style (17th ed.) Citation

Grabowski, Edward, and Józef Ondrusz. Ex Libris Józef Ondrusz. [S. l, 1964.

MLA (9th ed.) Citation

Grabowski, Edward, and Józef Ondrusz. Ex Libris Józef Ondrusz. 1964.

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