@book{224,
	author = {Thrusfield, Michael},
	title = {Epidemiología veterinaria},
	publisher = {Acribia,},
	year = {1990},
	address = {Zaragoza :},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_2/epidemiologia-veterinaria/}
}