Callear David. (1994). Prolog programming for students: With expert systems and artificial intelligence topics. DP.
Παραπομπή σε μορφή Chicago (17η εκδ.)Callear David. Prolog Programming for Students: With Expert Systems and Artificial Intelligence Topics. DP, 1994.
Παραπομπή σε μορφή MLA (8th εκδ.)Callear David. Prolog Programming for Students: With Expert Systems and Artificial Intelligence Topics. DP, 1994.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.