- Author: Ralph Schroeder
- Language: English
- Year: 2007
- Author: Ralph Schroeder
- Language: English
- Year: 1992
- Author: Ralph Schroeder
- Language: English
- Year: 2018
- Author: Niels Brügger Ralph Schroeder
- Language: English
- Year: 2017
- Author: Ralph Schroeder
- Language: English
- Year: 2016
- Author: Ralph Schroeder (eds.)
- Language: English
- Year: 1998
- Author: Ralph Schroeder (auth.)
- Language: English
- Year: 2013
- Author: William Ralph Schroeder
- Language: English
- Year: 1984