@book{455654,
	author = {Purcell, Edwin J. and Varberg, Dale,},
	title = {Cálculo diferencial e integral /},
	publisher = {Pearson Education,},
	year = {2007},
	address = {México :},
	edition = {9.ª edición},
	note = {Incluye Apéndice e Índice.},
	url = {aplicacionesbiblioteca.udea.edu.co:2076/bibliotechnia20/index.php?option=com_libros&task=read&id=5027&bookmark=0&Itemid=6}
}