- Author: Nils J Nilsson
- Language: English
- Year: 2005
- Author: Nils J Nilsson
- Language: English
- Year: 1971
- Author: Nils J Nilsson
- Language: English
- Year: 2009
- Author: Nils J. Nilsson
- Language: English
- Year: 2006
- Author: Nils J. Nilsson
- Language: English
- Year: 2009
- Author: Nils J. Nilsson
- Language: English
- Year: 2010
- Author: Nils J. Nilsson
- Language: English
- Year: 1971
- Author: Nils J. Nilsson
- Language: English
- Year: 1998