Research Institute of Agricultural Economics & Popp, J. (2008). Studies in agricultural economics: No. 108.
Cita Chicago (17th ed.)Research Institute of Agricultural Economics i Jozsef Popp. Studies in Agricultural Economics: No. 108. 2008.
Cita MLA (9th ed.)Research Institute of Agricultural Economics i Jozsef Popp. Studies in Agricultural Economics: No. 108. 2008.
Atenció: Aquestes cites poden no estar 100% correctes.