Geographic Subject
United States
10
India
5
Indonesia
5
Canada
2
England
2
Germany
2
Africa
1
Alabama
1
Andhra Pradesh
1
Cambodia
1
Congo (Democratic Republic)
1
EE.UU
1
Handbooks, manuals, etc
1
Illinois
1
Israel
1
Mozambique
1
Nepal
1
New York (State)
1
Normal
1
Pakistan
1
Philippines
1
Sri Lanka
1
West Bengal (India)
1
Yugoslavia
1
Zimbabwe
1