Παραπομπή σε μορφή APA (7η εκδ.)

Di Nola, A., Sessa, S., & Pedrycz, W. (1989). Fuzzy relation equations and their applications to knowledge engineering. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Di Nola, Antonio, Salvatore Sessa, και Witold Pedrycz. Fuzzy Relation Equations and Their Applications to Knowledge Engineering. Dordrecht: Kluwer Academic Publishers, 1989.

Παραπομπή σε μορφή MLA (8th εκδ.)

Di Nola, Antonio, et al. Fuzzy Relation Equations and Their Applications to Knowledge Engineering. Kluwer Academic Publishers, 1989.