@book{246527,
	author = {Pavón Lucero, Ma. Victoria},
	title = {Gramática práctica del español},
	publisher = {Espasa Calpe},
	year = {c2007.},
	series = {Guías prácticas del Instituto Cervantes},
	address = {Madrid},
	url = {http://www.loc.gov/catdir/enhancements/fy1110/2008375669-d.html}
}