
- Author: Michael Howard
- Language: English
- Year: 1986

- Author: Michael Howard
- Language: Spanish
- Year: 1999

- Author: Michael Howard
- Language: Spanish
- Year: 2002

- Author: John Viega & David LeBlanc & Michael Howard
- Language: English
- Year: 2010

- Author: Michael Howard
- Language: English
- Year: 15

- Author: Michael Howard
- Language: English
- Year: 2013

- Author: Michael Howard
- Language: English
- Year: 1979

- Author: Sir Michael Howard Dr. George Andreopoulos Mark R. Shulman
- Language: English
- Year: 1994

- Author: Michael Howard (auth.)
- Language: English
- Year: 1983