Dyfyniad APA

Vargas-Leitón, B., Marín-Marín, Y., & Romero-Zúñiga, J. J. (2012). Bioeconomic comparison of breed types Holstein, Jersey and Holstein×Jersey in Costa Rica.

Dyfyniad Arddull Chicago

Vargas-Leitón, Bernardo, Yamil Marín-Marín, y Juan José Romero-Zúñiga. Bioeconomic Comparison of Breed Types Holstein, Jersey and Holstein×Jersey in Costa Rica. 2012.

Dyfyniad MLA

Vargas-Leitón, Bernardo, Yamil Marín-Marín, y Juan José Romero-Zúñiga. Bioeconomic Comparison of Breed Types Holstein, Jersey and Holstein×Jersey in Costa Rica. 2012.

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