Lewis Hine: verschil tussen versies

* {{en}}[http://www.artcyclopedia.com/artists/hine_lewis_wickes.html Lewis Hine op ''Artcyclopedia'']

* {{en}}[http://memory.loc.gov/pp/nclchtml/nclcabt.html Fotoarchief ''Library of Congress'']

 

{{Commons|Lewis Hine}}