SUBJECT
Physical geography
Geography
16
Human beings
12
Ethnology
11
Juvenile literature
7
Text-books
6
Anthropo-geography
5
Environmental protection
5
Man
5
Economic conditions
4
Geomorphology
4
Textbooks
4
Conservation of natural resources
3
Description and travel
3
Geology
3
Influence on nature
3
Landforms
3
Maps
3
Natural history
3
1945-
2
Atlases
2
Atlases, British
2
Climatology
2
Earth sciences
2
Effect of human beings on
2
Environmental aspects
2
Environmental sciences
2
Geophysics
2
Global environmetal change
2
Human ecology
2
Influence of environment
2
Nature
2
Philosophy
2
Pollution
2
Research
2
Social conditions
2
Addresses, essays, lectures
1
Antiquities
1
Climate changes
1
Climatic changes
1
Crop zones
1
Description, Geography
1
Earth
1
Ecology
1
Economic history
1
Effect of environment on
1
Geographical research
1
Geography, Ancient
1
Geography, Economic
1
Geological research
1
more ...