publisher: Alianza Editorial publish date: June 30th 2007
format: paperback pages: 560
language: Spanish
ISBN:
8420647845 (9788420647845)
publisher: Siglo XXI publish date: November 1st 1999
format: paperback
language: Spanish
ISBN:
9682321689 (9789682321689)
publisher: Universitat Oberta de Catalunya publish date: July 31st 2003
format: paperback pages: 651
language: Spanish
ISBN:
8484293181 (9788484293187)