@misc{_[Threshing_[1937],
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 year={[1937]},
 title={[Threshing with a traction engine] [An iconographic document]},
 keywords={ethnography, material culture, social culture, agriculture, farming, farm works, harvest, grain threshing, agricultural machine, steam engine, traction engine},
}