Файл:Construction workers.JPGDescriptionConstruction workers.JPG English: Construction workers Date 10 May 2013, 10:45:46 Source Own work Author Greenmars
Файл:Construction Workers.jpghttps://www.flickr.com/photos/pkeleher/250015747/ operator: Flickr URL: https://live.staticflickr.com/94/250015747_d5558a2267_o.jpg determination method: SHA-1