@book{61618,
	title = {Westphalia : Petropolis},
	publisher = {[s.n.],},
	year = {[1903?]},
	series = {Postals Joan Oliva},
	address = {[s.l.] :},
	url = {https://imatges.victorbalaguer.cat/Pasifae/imatges/mz1_IP/Mz_1_I_P_126a.jpg}
}