Dyfyniad APA

Vargas Sobrado, D., Murillo Herrera, J., Hueckmann Voss, F., & Romero Zúñiga, J. J. (2017). Values for protein/fat ratio and milk urea nitrogen in milk from dairy cows in northern Alajuela and Heredia, Costa Rica.

Dyfyniad Arddull Chicago

Vargas Sobrado, Diana, Jaime Murillo Herrera, Frank Hueckmann Voss, y Juan José Romero Zúñiga. Values for Protein/fat Ratio and Milk Urea Nitrogen in Milk From Dairy Cows in Northern Alajuela and Heredia, Costa Rica. 2017.

Dyfyniad MLA

Vargas Sobrado, Diana, Jaime Murillo Herrera, Frank Hueckmann Voss, y Juan José Romero Zúñiga. Values for Protein/fat Ratio and Milk Urea Nitrogen in Milk From Dairy Cows in Northern Alajuela and Heredia, Costa Rica. 2017.

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