Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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