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- Language: English
- Year: 2011

- Author: Shaun Gallagher
- Language: English
- Year: 2008

- Author: Leonard D. Katz
- Language: English
- Year: 2000

- Author: Corey Abel Timothy Fuller
- Language: English
- Year: 2005

- Author: Nicholas Humphrey
- Language: English
- Year: 2000