- Author: Dennis D. Wackerly, William Mendenhall, Richard L. Scheaffer
- Language: English
- Year: 2008
- Author: Dennis D. Wackerly, William Mendenhall, Scheaffer Richard L.
- Language: Spanish
- Year: 2009
- Author: Dennis D Wackerly, William Mendenhall, Richard L Scheaffer
- Language: English
- Year: 2008
- Author: Dennis D. Wackerly William Mendenhall Richard L. Scheaffer
- Language: English
- Year: 2008
- Author: Dennis D. Wackerly William Mendenhall Richard L. Scheaffer
- Language: English
- Year: 2008
- Author: Dennis D. Wackerly William Mendenhall Richard L. Scheaffer
- Language: English
- Year: 2008