- Author: Michael J. Donahoo, Kenneth L. Calvert
- Language: English
- Year: 2009
- Author: Michael J Donahoo, Kenneth L Calvert
- Language: English
- Year: 2009
- Author: Michael J. Donahoo Gregory D. Speegle
- Language: English
- Year: 2005
- Author: David B Makofske, Michael J Donahoo, Kenneth L Calvert
- Language: English
- Year: 2004
- Author: David B Makofske, Michael J Donahoo, Kenneth L Calvert
- Language: English
- Year: 2004
- Author: Kenneth L Calvert, Michael J Donahoo
- Language: English
- Year: 2008
- Author: Kenneth L. Calvert Michael J. Donahoo
- Language: English
- Year: 2008
- Author: Michael J. Donahoo Kenneth L. Calvert
- Language: English
- Year: 2001
- Author: Michael J. Donahoo
- Language: English
- Year: 2005