@book{2221,
	author = {Piquero Martin, Jaime.},
	title = {Acné : },
	publisher = {S/E.},
	year = {1995.},
	address = {Bogotá [Colombia] : },
	edition = {2a ed.},
	note = {Piquero Martin, J. (1995). Acné: manejo racional. (2a ed.). Bogotá: S/E}
}