@book{91,
	author = {Virgilio, 70-19 a.C.},
	title = {Eglogas y Geórgicas},
	publisher = {Librería de Perlado Páez},
	year = {1909},
	series = {Biblioteca clásica},
	address = {Madrid},
	url = {http://www.ellibrototal.com/ltotal/?t=1&d=5376_5308_1_1_5376}
}