[History of the health protection for oil workers in Bashkiria in the '30s and '40s].
D001486:Bashkiria; D049673:History, 20th Century; D009786:Occupational Health Services; D010578:Petroleum; D014857:Warfare
D010578:Petroleum
K istorii okhrany zdorov'ia neftianikov Bashkirii v 30--40-e gody.