Columbia subject headings:
Prokhorov family--History.
Prokhorovskai︠a︡ Trekhgornai︠a︡ manufaktura--History.
Harvard subject headings:
Prokhorov family.
Textile industry--Russia--History.
Textile industry--Soviet Union--History.
Trekhgornai︠a︡ manufaktura--History.
Princeton subject headings:
Prokhorov family--History.
Prokhorovskai︠a︡ Trekhgornai︠a︡ manufaktura--History.