- Author: Howard B. Schaffer
- Language: English
- Year: 1993
- Author: Nicol R. Howard, Regina Schaffer, Sarah Thomas
- Language: English
- Year: 2018
- Author: Howard B. Schaffer
- Language: English
- Author: Howard B. Schaffer
- Language: English
- Author: Schaffer Howard B., Schaffer Teresita C
- Language: English
- Year: 2016
- Author: Howard B. Schaffer
- Language: English
- Year: 2003