- Author: Ken Laidlaw Larry W. Thompson Dolores Gallagher-Thompson Leah Dick-Siskin
- Language: English
- Year: 2003
- Author: David H. Laidlaw Joachim Weickert
- Language: English
- Year: 2009
- Author: Laidlaw DeWitt
- Language: English
- Year: 1971
- Author: Ken Laidlaw
- Language: English
- Author: David H. Laidlaw Joachim Weickert
- Language: English
- Year: 2009
- Author: Laidlaw M.G.G. Morette-DeWitt C.
- Language: English
- Year: 1971