Columbia subject headings:
Cities and towns--Dobruja (Romania and Bulgaria)--Growth--History.
Dobruja (Romania and Bulgaria)--Church history.
Dobruja (Romania and Bulgaria)--Civilization.
Urbanization--Dobruja (Romania and Bulgaria)--History.
Harvard subject headings:
Cities and towns--Dobruja (Romania and Bulgaria)--Growth--History.
Dobruja (Romania and Bulgaria)--Church history.
Dobruja (Romania and Bulgaria)--Civilization.
Urbanization--Dobruja (Romania and Bulgaria)--History.
Princeton subject headings:
Cities and towns--Dobruja (Romania and Bulgaria)--Growth--History.
Dobruja (Romania and Bulgaria)--Church history.
Dobruja (Romania and Bulgaria)--Civilization.
Urbanization--Dobruja (Romania and Bulgaria)--History.