Dyfyniad APA

Research Institute of Agricultural Economics & Popp, J. (2008). Studies in agricultural economics: No. 108.

Dyfyniad Arddull Chicago

Research Institute of Agricultural Economics and Jozsef Popp. Studies in Agricultural Economics: No. 108. 2008.

Dyfyniad MLA

Research Institute of Agricultural Economics and Jozsef Popp. Studies in Agricultural Economics: No. 108. 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.