APA (7th ed.) Citation

Wichert, C. (2000). ULTRA - a logic transaction programming language.

Chicago Style (17th ed.) Citation

Wichert, Carl-Alexander. ULTRA - a Logic Transaction Programming Language. 2000.

MLA (9th ed.) Citation

Wichert, Carl-Alexander. ULTRA - a Logic Transaction Programming Language. 2000.

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