Barnes, Dwight H. (1987). "The First Don Pedro". The Greening of Paradise Valley: The First 100 Years of the Modesto Irrigation District. Modesto, CA: City of Modesto. OCLC16224503. Retrieved 2009-04-09.
ucdavis.edu
cee.engr.ucdavis.edu
Sukhwant Virk; Josh Hinkey (31 August 2007). "Don Pedro Dam". UC Davis. Archived from the original on 10 June 2010. Retrieved 2009-04-09.
web.archive.org
Sukhwant Virk; Josh Hinkey (31 August 2007). "Don Pedro Dam". UC Davis. Archived from the original on 10 June 2010. Retrieved 2009-04-09.
Barnes, Dwight H. (1987). "The First Don Pedro". The Greening of Paradise Valley: The First 100 Years of the Modesto Irrigation District. Modesto, CA: City of Modesto. OCLC16224503. Retrieved 2009-04-09.