SUBJECT
Geography
Study and teaching
56
Geographic information systems
30
Methodology
28
Statistical methods
28
History
22
Philosophy
18
Physical geography
17
Textbooks
17
Information storage and retrieval systems
16
Research
15
Data processing
13
Study and teaching (Secondary)
13
Ethnology
12
Tourism
12
Human beings
11
Description and travel
10
Dictionaries
10
Juvenile literature
10
Travel
10
Atlases
9
Human geography
9
Political science
9
Tourist trade
9
Mathematical models
8
Mathematics
8
Spatial analysis (Statistics)
8
Statesmen
8
Geography, Economic
7
Remote sensing
7
Human ecology
6
Maps
6
Economics
5
International travel regulations
5
Man
5
Natural resources
5
Study and teaching (Elementary)
5
Study and teaching (Primary)
5
Anthropo-geography
4
Anthropology
4
Computer network resources
4
Electronic books
4
Globalization
4
Influence of environment
4
Remote sensing systems
4
Social sciences
4
Text-books
4
World politics
4
Bible
3
Cartography
3
mere ...