"1963–1996 Statistics / B"(DOC). Instituto Nacional de Estadística de Uruguay. 2004. Archived from the original on 21 July 2011. Retrieved 28 June 2011.
web.archive.org
"1963–1996 Statistics / B"(DOC). Instituto Nacional de Estadística de Uruguay. 2004. Archived from the original on 21 July 2011. Retrieved 28 June 2011.