- Author: Robert Sabatino Lopez Irving W. Raymond
- Language: English
- Year: 1967
- Author: Brooke Hindle
- Language: English
- Year: 1983
- Author: Saint Boniface Ephraim Emerton
- Language: English
- Year: 1976
- Author: Edmund S. Morgan
- Language: English
- Year: 1984
- Author: Charles Christopher Mierow Bishop of Freising Otto I Rahewin
- Language: English
- Year: 1966
- Author: Robert C. Tucker
- Language: English
- Year: 1973
- Author: Robert de Clari Edgar Holmes McNeal
- Language: English
- Year: 1969
- Author: Arthur James May
- Language: English
- Year: 1968
- Author: Clair Hayden Bell der Gartenaere Wernher von Aue Hartmann
- Language: English
- Year: 1968
