Columbia subject headings:
Harvard subject headings:
Architecture--Turkey--Gölcük.
City planning--Turkey--Gölcük.
Gölcük (Turkey)--Buildings, structures, etc.
Gölcük (Turkey)--Description and travel.
Princeton subject headings:
Architecture--Turkey--Gölcük.
City planning--Turkey--Gölcük.
Gölcük (Turkey)--Buildings, structures, etc.
Gölcük (Turkey)--Description and travel.