- Author: Burley David, Clements Dick, Dyke Phil, James Glyn, Searl John, Wright Jerry
- Language: English
- Year: 2015
- Author: Redman Tom(Contributor), Wilkinson Adrian(Contributor), Dundon Tony(Contributor)
- Language: English
- Year: 2016
- Author: Schmalleger Frank
- Language: English
- Year: 2013
- Author: Edwards Charles Henry, Penney David E
- Language: English
- Year: 2013
- Author: Keller Kevin Lane
- Language: English
- Year: 2012
- Author: Klein Michael W
- Language: English
- Year: 2013
- Author: Schunk Dale H
- Language: English
- Year: 2013
- Author: Hornsby John, Lial Margaret L, Rockswold Gary K
- Language: English
- Year: 2013
- Author: Kehew Alan E
- Language: English
- Year: 2013
Global issues
pdf
- Author: Payne Richard J
- Language: English
- Year: 2014