Columbia subject headings:
Gdańsk Metropolitan Area (Poland)--History.
Harvard subject headings:
Gdańsk Suburban Area (Poland)--History.
Suburbs--Poland--Gdańsk--History.
Princeton subject headings:
Agriculture--Economic aspects--Poland--Żuławy Gdańskie.
Land use, Rural--Poland--Żuławy Gdańskie.
Żuławy Gdańskie (Poland)--Social conditions.