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- Author: Henry Clay, James F. Hopkins, Mary W. M. Hargreaves, James F. Hopkins, Robert Seager
- Language: English
- Year: 1963
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- Author: Henry Clay, James F. Hopkins, Mary W. M. Hargreaves
- Language: English
- Year: 1972
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- Author: Mary W.M. Hargreaves
- Language: English
- Year: 1985