1
Unknown
2
Unknown
3
Unknown
4
by Llanos, Marlon
Published 1970
Unknown
5
Unknown
6
Unknown
7
Unknown
9
Unknown
10
Unknown
11
Unknown
12
Unknown
14
Published 2004
Unknown
16
by Hobsbawm, Eric
Published 2018
Unknown
17
18
by Brunner, José Joaquín.
Published 1995
Unknown
19
by Kuhn, Thomas S.
Published 1971
Unknown
20
by Hoecker, Gustavo.
Published 1980
Unknown