Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Reserch Institute of Agricultural Economics, Committee on Agricultural Economics, Hungarian Academy of Sciences, Jozsef Popp, Szabo Gabor, i Barnafi Laszlo. Studies in Agricultural Economics 2009: No 109. 2009.

Cita MLA (9th ed.)

Reserch Institute of Agricultural Economics, et al. Studies in Agricultural Economics 2009: No 109. 2009.