- Author: Robert Wright, Richard Sylla, Charles Royce
- Language: English
- Year: 2015
- Author: David Cowen, Richard Sylla
- Language: English
- Year: 2018
- Author: Douglas A. Irwin (editor), Richard Sylla (editor)
- Language: English
- Year: 2011
- Author: Richard Sylla, David J. Cowen
- Language: English
- Year: 2018
- Author: Sidney Homer / Richard Sylla
- Language: English
- Year: 2005
- Author: Robert E. Wright Richard Sylla Charles M. Royce
- Language: English
- Year: 2015
- Author: Sidney Homer Richard Sylla
- Language: English
- Year: 2005
- Author: Sidney Homer Richard Sylla
- Language: English
- Year: 2005
- Author: Richard Sylla Gianni Toniolo
- Language: English
- Year: 1993