Climate Change Lesson 11 : Water Balance and the Great Lakes
Burt, Charles M. Irrigation Water Balance Fundamentals, 1999. Retrieved July 2, 2018 from http://digitalcommons.calpoly.edu/bae_fac/53/
Ritter, Michael E. The Physical Environment: The Water Balance. Retrieved July 2, 2018 from http://www.earthonlinemedia.com/ebooks/tpe_3e/hydrosphere/title_page.html