APA (7th ed.) Citation

Fensel, D. (1994). The knowledge acquisition and representation language KARL.

Chicago Style (17th ed.) Citation

Fensel, Dieter. The Knowledge Acquisition and Representation Language KARL. 1994.

MLA (9th ed.) Citation

Fensel, Dieter. The Knowledge Acquisition and Representation Language KARL. 1994.

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