"Estadisca Climatologica Tomo II"(PDF) (in Spanish). Dirección General de Aeronáutica Civil. March 2001. Archived from the original(PDF) on 2016-03-03. Retrieved December 27, 2012.
Hajek, Ernst; Castri, Francesco (1975). "Bioclimatografia de Chile"(PDF) (in Spanish). Archived from the original(PDF) on 22 November 2009. Retrieved 27 May 2024.
"Estadisca Climatologica Tomo II"(PDF) (in Spanish). Dirección General de Aeronáutica Civil. March 2001. Archived from the original(PDF) on 2016-03-03. Retrieved December 27, 2012.
Hajek, Ernst; Castri, Francesco (1975). "Bioclimatografia de Chile"(PDF) (in Spanish). Archived from the original(PDF) on 22 November 2009. Retrieved 27 May 2024.