APA (7th ed.) Citation

Kelma, C., & Ratajczak, A. (1979). Ex Libris Antoniego Ratajczaka.

Chicago Style (17th ed.) Citation

Kelma, Czesław, and Antoni Ratajczak. Ex Libris Antoniego Ratajczaka. [S. l.], 1979.

MLA (9th ed.) Citation

Kelma, Czesław, and Antoni Ratajczak. Ex Libris Antoniego Ratajczaka. 1979.

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