1
2
3
4
5
6
Published 1989
7
Published 1992
8
by Zahlan, Antoine
Published 1970
9
by Bronowski, Jacob, 1908-1974
Published 1973
10
Published 2004
11
Published 2005
12
13
Published 1995
14
15
16
by Stybe, Svend Erik
Published 1979
17
18
Published 1990
19
Published 2000
20
by Engels, Friedrich, 1820-1895.
Published 1964