@book{525,
	author = {Espinosa Herrera, Ernesto Javier,},
	title = {Cálculo diferencial e integral I :},
	publisher = {Reverté,},
	year = {2008},
	address = {Barcelona :},
	edition = {1ª edición},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_2/calculo-diferencial-e-integral-v1/}
}