- Author: Friis Robert H., Sellers Thomas A.
- Language: English
- Year: 2014
- Author: Saxo Grammaticus Karsten Friis-Jensen (ed.) Peter Fisher (transl.)
- Language: English, Latin
- Year: 2015
- Author: Saxo Grammaticus Karsten Friis-Jensen (ed.) Peter Fisher (transl.)
- Language: English, Latin
- Year: 2015
- Author: Allan M. Friis Poul Andersen Jørgen Juncher Jensen
- Language: English
- Year: 2002
- Author: Friis J. A.
- Language: Norwegian
- Year: 1856
- Author: Robert H. Friis
- Language: English
- Year: 2012
- Author: S.A. Schelkunoff, H.T. Friis
- Language: English
- Year: 1952
- Author: Elizabeth Friis
- Language: English
- Year: 2017
- Author: Friis Elizabeth A
- Language: English
- Year: 2017
- Author: Mogens Bladt Bo Friis Nielsen (auth.)
- Language: English
- Year: 2017