APA (7th ed.) Citation

Jakubowski, W., & Křupka, V. (1976). Ex Libris Vaclav Křupka.

Chicago Style (17th ed.) Citation

Jakubowski, Wojciech, and Vaclav Křupka. Ex Libris Vaclav Křupka. [Gdynia, 1976.

MLA (9th ed.) Citation

Jakubowski, Wojciech, and Vaclav Křupka. Ex Libris Vaclav Křupka. 1976.

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