- Author: Hugh D Young, Roger A Freedman
- Language: English
- Year: 2019
- Author: Hugh D. Young Roger A. Freedman
- Language: English
- Year: 2015
- Author: Hugh D. Young Roger A. Freedman
- Language: English
- Year: 2012
- Author: Francis Sears Mark Zemansky Hugh D. Young Roger A. Freedman
- Language: Spanish
- Year: 2013
- Author: Hugh D. Young Roger A. Freedman
- Language: Portuguese
- Year: 2016
- Author: Hugh D. Young Roger A. Freedman
- Language: Portuguese
- Year: 2016
- Author: Hugh D. Young Roger A. Freedman
- Language: Portuguese
- Year: 2016
- Author: Hugh D. Young Roger A. Freedman
- Language: Portuguese
- Year: 2016
- Author: Hugh D. Young Roger A. Freedman
- Language: Portuguese
- Author: Hugh D. Young
- Language: Portuguese
- Year: 2008