@book{67882,
	author = {Guerra Dueñas, Jaime Guadalupe.},
	title = {Sustitución de antibióticos por levadura (Saccharomyces cerevisiae) en dietas pre-inicial e inicial en cerdos},
	publisher = {El autor,},
	year = {1988},
	address = {Chapingo, Méx. :},
	note = {26-13}
}