REMOVE

1. Data Visualization
2. Land Development
3. Agriculture
4. Historical

WHAT

1. National Atlas (8)

WHERE

1. Switzerland (7)

WHO

1. Eidgenössische Landestopo … (8)
2. Imhof, Eduard, 1895-1986 (8)
3. Verlag der Eidgenössisch … (8)
4. Koblet, Rudolf (3)
5. Brügger, Hans (2)

WHEN

1. 1978 (8)
2. 1977 (4)
3. 1968 (2)
4. 1960 (1)
5. 1961 (1)