@book{169094,
	author = {Palma Cruz, Jaime Jesús},
	title = {Evaluación de la fertilidad de ovejas Coopworth utilizando semen fresco de carneros Poll Dorset o Charolais  /},
	publisher = {El autor,},
	year = {2009},
	address = {Chapingo, Méx.  :}
}