REMOVE

1. Data Visualization
2. Land Development
3. Population
4. Atlas Map

WHAT

1. Commerce; Economics (1)

WHERE

1. Russia (1)
2. Switzerland (1)
3. Zurich (Switzerland) (1)

WHO

1. Eidgenössische Landestopo … (1)
2. Gorkin, Aleksandr Fedorov … (1)
3. Imhof, Eduard, 1895-1986 (1)
4. Motylev, V.E. (1)
5. Nauchno-izdatelskim Insti … (1)

WHEN

1. 1937 (1)
2. 1939 (1)
3. 1975 (1)
4. 1978 (1)