Problemas del conocimiento

Revision	When	Who	Comment

7	October 25, 2021	Victor Biblioteca Sociales	Edited without comment.
6	October 25, 2021	Victor Biblioteca Sociales	Added new cover
5	October 4, 2020	MARC Bot	import existing book
4	December 14, 2009	WorkBot	link works
3	September 15, 2009	200.108.111.230	Edited without comment.
2	September 13, 2009	190.40.237.24	Edited without comment.
1	April 1, 2008		Imported from Scriblio MARC record.