Podobné jednotky: Petroleum - Gas University of Ploiesti Bulletin, Economic Sciences Series
- Petroleum - Gas University of Ploiesti Bulletin, Educational Sciences Series
- Petroleum - Gas University of Ploiesti Bulletin, Technical Series
- Petroleum - Gas University of Ploiesti Bulletin, Philology Series
- Petroleum - Gas University of Ploiesti Bulletin, Law & Social Sciences Series
- Petroleum - Gas University of Ploiesti Bulletin, Mathematics - Informatics - Physics Series
- Annals of the University of Oradea, Economic Science Series