@book{1533,
	author = {Ferreira,, Susana Barros and Lobo,, Ana Paula},
	title = {ˆO ‰Programa Polis e a componente ambiental},
	publisher = {Parque Expo 98,},
	year = {D.L. 2007},
	series = {Expoentes},
	address = {Lisboa}
}