Columbia subject headings:
Harvard subject headings:
Anthracite coal industry--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal industry--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal industry--Turkey--History--19th century.
Anthracite coal industry--Turkey--History--20th century.
Anthracite coal mines and mining--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal mines and mining--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal mines and mining--Turkey--History--19th century.
Anthracite coal mines and mining--Turkey--History--20th century.
Anthracite coal--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal--Turkey--History--19th century.
Anthracite coal--Turkey--History--20th century.
Dilaver Paşa.
Ereğli (Zonguldak İli, Turkey)--History--19th century.
Ereğli (Zonguldak İli, Turkey)--History--20th century.
Mine management--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Mine management--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Mine management--Turkey--History--19th century.
Mine management--Turkey--History--20th century.
Princeton subject headings:
Anthracite coal industry--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal industry--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal industry--Turkey--History--19th century.
Anthracite coal industry--Turkey--History--20th century.
Anthracite coal mines and mining--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal mines and mining--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal mines and mining--Turkey--History--19th century.
Anthracite coal mines and mining--Turkey--History--20th century.
Anthracite coal--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Anthracite coal--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Anthracite coal--Turkey--History--19th century.
Anthracite coal--Turkey--History--20th century.
Ereğli (Zonguldak İli, Turkey)--History--19th century.
Ereğli (Zonguldak İli, Turkey)--History--20th century.
Mine management--Turkey--Ereğli (Zonguldak İli)--History--19th century.
Mine management--Turkey--Ereğli (Zonguldak İli)--History--20th century.
Mine management--Turkey--History--19th century.
Mine management--Turkey--History--20th century.