Region
- United States 23 results
- India 14 results
- Communist countries 2 results
- Europe 2 results
- Great Britain 2 results
- Africa 1 results
- Africa, Sub-Saharan 1 results
- Arizona 1 results
- Bangalore 1 results
- Bangladesh 1 results
- Cincinnati 1 results
- Developing countries 1 results
- East Asia 1 results
- Europe, Central 1 results
- Europe, Eastern 1 results
- European Economic Community countries 1 results
- Germany 1 results
- Germany (East) 1 results
- Ireland 1 results
- Ludhiana 1 results
- Malabar Coast 1 results
- Malabar Coast (India) 1 results
- Ohio 1 results
- Portugal 1 results
- Soviet Union 1 results