@misc{_[Workers_[1929],
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 year={[1929]},
 title={[Workers building a rampart next to the Warta river] [An iconographic document]},
 keywords={ethnography, material culture, social culture, man, work, building of sand embarkment, social bonds, Warta River valley (Poland)},
}