- Author: Laszlo Ervin
- Language: English
- Year: 2009
- Author: Laszlo Ervin
- Language: English
- Year: 2009
- Author: Laszlo Ervin
- Language: English
- Year: 2017
- Author: Laszlo Ervin
- Language: English
- Year: 2017
- Author: Laszlo Ervin
- Language: English
- Year: 2014
- Author: Laszlo Ervin
- Language: English
- Year: 2006
- Author: Laszlo Ervin
- Language: English
- Year: 2006
- Author: Laszlo Ervin
- Language: English
- Year: 2001
- Author: Laszlo Ervin
- Language: English
- Year: 2007
- Author: Chopra Deepak, Grof Stanislav, Laszlo Ervin
- Language: English
- Year: 2016