@book{4607,
	author = {Gilbert,, Martin, and Marques,, Ricardo, and Boléo,, Paiva},
	title = {ˆA ‰primeira Guerra Mundial, vol.6},
	publisher = {A Esfera dos Livros,},
	year = {D.L. 2014},
	series = {Expresso},
	address = {Lisboa},
	url = {http://rnod.bn.pt/ImagesBN/winlibimg.aspx?skey=&doc=1884056&img=49369&save=true}
}