@book{26520,
	author = {Purcell, Edwin J. and Oteyza, M. en C. Elena de},
	title = {Cálculo con geometria analitica  /},
	publisher = {Prentice Hall, },
	year = {2000},
	address = {México  },
	edition = {6a ed.},
	note = {Incluye índice}
}