Παραπομπή σε μορφή APA (7η εκδ.)

Helman, D. H. (1988). Analogical reasoning: Perspectives of artificial intelligence, cognitive science, and philosophy. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Helman, David Henry. Analogical Reasoning: Perspectives of Artificial Intelligence, Cognitive Science, and Philosophy. Dordrecht ; Boston: Kluwer Academic Publishers, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Helman, David Henry. Analogical Reasoning: Perspectives of Artificial Intelligence, Cognitive Science, and Philosophy. Kluwer Academic Publishers, 1988.