Reserch Institute of Agricultural Economics, Committee on Agricultural Economics, Hungarian Academy of Sciences, Popp, J., Gabor, S., & Laszlo, B. (2009). Studies in agricultural economics 2009: No 109.
Chicago-viite (17. p.)Reserch Institute of Agricultural Economics, Committee on Agricultural Economics, Hungarian Academy of Sciences, Jozsef Popp, Szabo Gabor, ja Barnafi Laszlo. Studies in Agricultural Economics 2009: No 109. 2009.
MLA-viite (9. p.)Reserch Institute of Agricultural Economics, et al. Studies in Agricultural Economics 2009: No 109. 2009.
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