Παραπομπή σε μορφή APA (7η εκδ.)

Freuder, E. C., & Mackworth, A. K. (1992). Constraint-Based Reasoning. Massachusetts Institute of Technology Cambridge Mass. Bradford Book.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Freuder, Eugene C., και Alan K. Mackworth. Constraint-Based Reasoning. Cambridge Massachusetts Cambridge Massachusetts: Massachusetts Institute of Technology Cambridge Mass. Bradford Book, 1992.

Παραπομπή σε μορφή MLA (8th εκδ.)

Freuder, Eugene C., και Alan K. Mackworth. Constraint-Based Reasoning. Massachusetts Institute of Technology Cambridge Mass. Bradford Book, 1992.