- Author: Helen Ashton
- Language: English
- Year: 2004
- Author: Anthony Ashton
- Language: English
- Year: 2003
- Author: Peter Cerexhe John Ashton
- Language: English
- Year: 1999
- Author: Elaine K. Perry Heather Ashton Allan H. Young (Editors)
- Language: English
- Year: 2002
- Author: Thomas J. Monaco Steve C. Weller Floyd M. Ashton
- Language: English
- Year: 2002
- Author: John Ashton
- Language: English
- Author: Jennifer Ashton
- Language: English
- Year: 2006
- Author: J. Jaffe Glenn Paul Ashton P. Andrew Pearson
- Language: English
- Year: 2006
- Author: John Ashton
- Language: English
- Year: 2007
- Author: J. E Ashton
- Language: English
- Year: 1970