Παραπομπή σε μορφή APA (7η εκδ.)

Nikolopoulos, C. (1997). Expert systems: Introduction to first and second generation and hybrid knowledge based systems. Marcel Dekker.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nikolopoulos, Chris. Expert Systems: Introduction to First and Second Generation and Hybrid Knowledge Based Systems. New york: Marcel Dekker, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Nikolopoulos, Chris. Expert Systems: Introduction to First and Second Generation and Hybrid Knowledge Based Systems. Marcel Dekker, 1997.