1. Clifton, J. R.Preservation of Historic Adobe Structures: A Status Report Technical Report 934, Washington, DC, National Bureau of Standards, US Government Printing Office (February 1977), p. 13.
2. Clemenson, A. B.Casa Grande Ruins National Monument, Arizona: A Centennial History of the First Prehistoric Preserve 1892–1992, Administrative History, United States Department of the Interior, National Park Service (1992), p. 33.
3. Clemenson,op. cit., ch 3.
4. Moss, J. ‘Of Adobe, Lime, and Cement: The Preservation History of the San Jose de Tumacacori Mission Church (Part II—Structures)’, www.nps.gov/archeology/sites/npsites/tumacacori2.htm, accessed 2 November 2010.
5. Clifton,op. cit., p. 13.