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A növényolaj-vertikum gazdaságossága
Bartha, Attiláné, (1986)
Vegetable oil industry and its effects on oil crop production in Poland and in Hungary - a comparative case study
Jansik, Csaba, (2002)
Alcune industrie di rilevante interesse per la Regione Toscana
Barbier, Enrico, (1993)