Moldovan, L., & Gligor, A. (2021). INTER-ENG 2020. MDPI - Multidisciplinary Digital Publishing Institute.
Čikaški stil citiranja (17. izdanje)Moldovan, Liviu, i Adrian Gligor. INTER-ENG 2020. Basel, Switzerland: MDPI - Multidisciplinary Digital Publishing Institute, 2021.
MLA način citiranja (8. izdanje)Moldovan, Liviu, i Adrian Gligor. INTER-ENG 2020. MDPI - Multidisciplinary Digital Publishing Institute, 2021.
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