APA-referens (7:e uppl.)

Wagner, T. (2005). Environmental scienceActive learning laboratories and applied problem setsTravis Wagner, Robert Sanfortd. John Wiley.

Chicago-referens (17:e uppl.)

Wagner, Travis. Environmental ScienceActive Learning Laboratories and Applied Problem SetsTravis Wagner, Robert Sanfortd. John Wiley, 2005.

MLA-referens (8:e uppl.)

Wagner, Travis. Environmental ScienceActive Learning Laboratories and Applied Problem SetsTravis Wagner, Robert Sanfortd. John Wiley, 2005.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.