Subject Region
United States
61
Great Britain
20
Canada
8
Australia
4
France
3
Soviet Union
3
British Columbia
2
Cairo
2
Chicago
2
Egypt
2
England
2
Illinois
2
London (England)
2
New York
2
New York (N.Y.)
2
New York (State)
2
Russia
2
China
1
Espana
1
Girard
1
Italy
1
Kansas
1
London
1
Mexico
1
Mississippi
1
Ohio
1
South Africa
1
Southern States
1
Venice
1
West (U.S.)
1