- Author: S. Douglas Olson
- Language: German
- Year: 2021
- Author: Douglas Selvage, Georg Herbstritt
- Language: German
- Year: 2021
FrC 3.6 Kratinos
pdf
- Author: Douglas Olson, Ryan Seaberg
- Language: German
- Year: 2018
- Author: S. Douglas Olson
- Language: German
- Year: 2023
- Author: Douglas Selvage, Walter Süß
- Language: German
- Year: 2019
God's Mercies
epub
- Author: Douglas Hunter
- Language: English
- Year: 2007
- Author: Ice-T, Douglas Century
- Language: English
- Year: 2011
- Author: Bertrand Russell ed. Douglas Lackey
- Language: English
- Year: 1973
