Title: Rabochiĭ klass i sot︠s︡ialʹnai︠a︡ ėvoli︠u︡t︠s︡ii︠a︡ v nefti︠a︡nykh monarkhii︠a︡kh Vostoka
Subjects: Labor and laboring classes, Petroleum industry and trade, Social aspects, Social aspects of Petroleum industry and trade
Places: Arab countries