Dyfyniad APA

Villalobos, L., Arce, J., & WingChing-Jones, R. (2013). Dry matter yield and production costs in grazing systems on dairy farms of Costa Rica.

Dyfyniad Arddull Chicago

Villalobos, Luis, Jose Arce, y Rodolfo WingChing-Jones. Dry Matter Yield and Production Costs in Grazing Systems On Dairy Farms of Costa Rica. 2013.

Dyfyniad MLA

Villalobos, Luis, Jose Arce, y Rodolfo WingChing-Jones. Dry Matter Yield and Production Costs in Grazing Systems On Dairy Farms of Costa Rica. 2013.

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