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- Language: English
- Year: 2005

- Author: Ronald Burke, Susan Vinnicombe
- Language: English
- Year: 2005

- Author: Anders Gustafsson, Bo Edvardsson
- Language: English
- Year: 2005

- Author: Peter Williams, Susannah Quinsee
- Language: English
- Year: 2005

- Author: Kazem Chaharbaghi, Andy Adcroft, Robert Willis
- Language: English
- Year: 2005

- Author: Tomas Mudrak, Andreas Van Wagenberg, Emiel Wubben
- Language: English
- Year: 2005

- Author: Ludwig von Mises
- Language: Spanish
- Year: 2002

- Author: Murray Rothbard
- Language: Spanish
- Year: 2002

- Author: Alberto Benegas Lynch
- Language: Spanish
- Year: 1995