COLLECTED BY
Organization: National Library of Spain Crawls
Data collected by Internet Archive on behalf of the National Library of Spain. This data is currently not publicly accessible.
Collection: nls_2009
this data is currently not publicly accessible.
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20100404010723/http://dmi.uib.es/~jproenza/fonaments/prguia-pdp11.pdf
