- Author: Dale Maureen M., Ritter James M., Rang Humphrey P., Flower Rod J., Henderson Graeme
- Language: English
- Year: 2011
- Author: Ahmad Faris Al-Shidyaq & Humphrey Davies
- Language: English
- Year: 2015
- Author: Peter A. Humphrey Louis P. Dehner John D. Pfeifer
- Language: English
- Year: 2012
- Author: Jay D. Humphrey Sherry L. O’Rourke (auth.)
- Language: English
- Year: 2015
- Author: Humphrey Carpenter J.R.R. Tolkien
- Language: English
- Year: 2014
- Author: Nicholas Humphrey
- Language: English
- Year: 2003
- Author: Humphrey P. Rang James M. Ritter Rod J. Flower Graeme Henderson
- Language: English
- Year: 2015