@book{2470,
	author = {Morales Peña, Guillermo Alberto and Ovalle Zuleta, Nestor},
	title = {Evaluación Comparativa Entre Betobimin, Albendazole e Ivermectinas en Bovinos de Levante /},
	publisher = {Unillanos,},
	year = {1989.},
	address = {Villavicencio :}
}