APA (7th ed.) Citation

Jakubowski, W., & Blum, G. (1984). Ex Libris Dr. Gernot Blum.

Chicago Style (17th ed.) Citation

Jakubowski, Wojciech, and Gernot Blum. Ex Libris Dr. Gernot Blum. [Gdynia, 1984.

MLA (9th ed.) Citation

Jakubowski, Wojciech, and Gernot Blum. Ex Libris Dr. Gernot Blum. 1984.

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