Author
Chile
3
Colombia
3
Ecuador
Finland
3
Greece
3
Israel
3
Korea (South)
3
Peru
3
Spain
3
United States
Argentina
2
Austria
2
Brazil
2
Burma
2
Egypt
2
France
2
Indonesia
2
Iran
2
Italy
2
Pakistan
2
Paraguay
2
Turkey
2
Yugoslavia
2
Bolivia
1
Ceylon
1
China
1
Great Britain
1
Iceland
1
India
1
Korea
1
Netherlands
1
Portugal
1
Thailand
1
United Arab Republic
1
United States President (1953-1961 : Eisenhower)
1
Uruguay
1
Vietnam
1