Chiras, D. D. (2001). Environmental science: Creating a sustainable future (6th ed.). Jones and Bartlett Publishers.
Chicago-referens (17:e uppl.)Chiras, Daniel D. Environmental Science: Creating a Sustainable Future. 6th ed. Sudbury, MA: Jones and Bartlett Publishers, 2001.
MLA-referens (9:e uppl.)Chiras, Daniel D. Environmental Science: Creating a Sustainable Future. 6th ed. Jones and Bartlett Publishers, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.