1. La evolución de los libros http ://www.stephanietroeth.com/bcto09/ Anaclara Dalla Valle [email_address]

2. 4000 a.c

3. 3000 a.C

4. 1000 a.C

5. 0

6. 500 d.C

7. 1440

8. 1930

9. 1995

10. 2004

11. 2006

12. 2007

13. 2008