Παραπομπή σε μορφή APA (7η εκδ.)

Kral, J. (1988). Potential theory surveys and problems: Proceedings of a conference held in Prague, July 19-24, 1987. Springer-Verlag.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kral, Josef. Potential Theory Surveys and Problems: Proceedings of a Conference Held in Prague, July 19-24, 1987. Berlin: Springer-Verlag, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kral, Josef. Potential Theory Surveys and Problems: Proceedings of a Conference Held in Prague, July 19-24, 1987. Springer-Verlag, 1988.