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- Language: English
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- Year: 2003
- Author: Liam Mahony, Luis E. Eguren, Liam Mahony
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- Year: 1997
- Author: Ignacio M. García, Ignacio M Garciua, Henry A J Ramos
- Language: English
- Year: 2001
- Author: Mary Stanton
- Language: English
- Year: 2003
- Author: Dorothy H. Christenson, Mary E. Frederickson, Mary E Frederickson
- Language: English
- Year: 2015
- Author: Robert Cohen, Tom Hayden, Robert Reich, Lynne Hollander Savio
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- Year: 2014
- Author: Gordon Andrews
- Language: English
- Year: 2014