- Author: Michael P. Walker B.A. (Hons) Dip.P.T. (auth.)
- Language: English
- Year: 1977
- Author: Bruce S. Schoenberg (auth.) Michael D. Walker M.D. (eds.)
- Language: English
- Year: 1983
- Author: R. Allen Wyke Michael J. Walker Robert M. Cox
- Language: English
- Year: 2001