Dyfyniad APA

López-Trujillo, R., García-Elizondo, R., & Ruiz-Zarate, F. (2016). First calving date and productivity of Charolais cows in Coahuila, Mexico.

Dyfyniad Arddull Chicago

López-Trujillo, Ramiro, Roberto García-Elizondo, y Fernando Ruiz-Zarate. First Calving Date and Productivity of Charolais Cows in Coahuila, Mexico. 2016.

Dyfyniad MLA

López-Trujillo, Ramiro, Roberto García-Elizondo, y Fernando Ruiz-Zarate. First Calving Date and Productivity of Charolais Cows in Coahuila, Mexico. 2016.

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