@book {2685,
	title = {20th Century Photography},
	series = {Museum Ludwig Cologne},
	year = {1996},
	pages = {760},
	publisher = {Taschen},
	organization = {Taschen},
	edition = {primeira edi{\c c}ao},
	chapter = {Fotografia},
	address = {Koln},
	isbn = {3-8228-8648-3}
}
@book {2682,
	title = {20th Century Photography},
	series = {Museum Ludwig Cologne},
	year = {2001},
	pages = {191},
	publisher = {Taschen},
	organization = {Taschen},
	edition = {segunda edi{\c c}{\~a}o},
	chapter = {Fotografia},
	address = {Koln},
	isbn = {3-8228-5514-6}
}
