sprache	abbildung	namen	titel	jahr	adresse
en		Gellert, Hugo	American Labor: Negro workers. Women workers. Miners. Inside of a steel mill. Sacco and Vanzett[…]	1928	Proletcos Cafeteria, 28 Union Square, New York
en		Refregier, Anton	The History of California	1940–48	Rincon Center (former Rincon Annex Post Office), 101 Spear St, San Francisco, CA, USA