Apathy, E., Lamberger, G., Racz, M., & Szanyi, M. (1991). The change of Regime and the Hungarian telecommunication industry: An Empirical Survey. Institute for World Economics of the Hungarian Academy of Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)Apathy, Ervin, Galina Lamberger, Margit Racz, και Miklos Szanyi. The Change of Regime and the Hungarian Telecommunication Industry: An Empirical Survey. Budapest: Institute for World Economics of the Hungarian Academy of Sciences, 1991.
Παραπομπή σε μορφή MLA (9th εκδ.)Apathy, Ervin, et al. The Change of Regime and the Hungarian Telecommunication Industry: An Empirical Survey. Institute for World Economics of the Hungarian Academy of Sciences, 1991.