APA način citiranja

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

Čikaški stil citiranja

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

MLA način citiranja

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