APA (7th ed.) Citation

Jakubowski, W., & Bourmer, H. (1980). Ex Libris Dr Med Horst Bourmer.

Chicago Style (17th ed.) Citation

Jakubowski, Wojciech, and Horst Bourmer. Ex Libris Dr Med Horst Bourmer. 1980.

MLA (9th ed.) Citation

Jakubowski, Wojciech, and Horst Bourmer. Ex Libris Dr Med Horst Bourmer. 1980.

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