Παραπομπή σε μορφή APA (7η εκδ.)

Advanced International Summer School and Conference on Mathematical Logic and Its Applications Druzhba, Varna, Bulgaria, Skordev, D. G., & Gödel, K. (1987). Mathematical logic and its applications. Plenum Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Advanced International Summer School and Conference on Mathematical Logic and Its Applications Druzhba, Varna, Bulgaria, Dimitur Genchev Skordev, και Kurt Gödel. Mathematical Logic and Its Applications. New York: Plenum Press, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Advanced International Summer School and Conference on Mathematical Logic and Its Applications Druzhba, Varna, Bulgaria, et al. Mathematical Logic and Its Applications. Plenum Press, 1987.