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- Language: English
- Year: 2006

- Author: Stephen Brockmann
- Language: English
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- Author: K. Porter Aichele
- Language: English
- Year: 2006

- Author: Roger F. Cook
- Language: English
- Year: 2002

- Author: Herbert Lehnert Eva Wessell
- Language: English
- Year: 2004

- Author: Will Hasty
- Language: English
- Year: 2003

- Author: Roland Dollinger Wulf Koepke Heidi Thomann Tewarson
- Language: English
- Year: 2003

- Author: Vickie L. Ziegler
- Language: English
- Year: 2004