1
by Drucker
Published 2010
2
by Whitley
Published 1999
3
Published 1989
4
by Seitz
Published 2012
5
by Toffler
Published 2006
6
by Harford
Published 2006
7
by Seitz
Published 2008
8
Published 1996
9
by FOREMAN-PECK
Published 1995
10
by KING
Published 1991
11
by COHEN
Published 1995
12
by BRAUDEL
Published 1977
13
by ROHWER
Published 1995
14
by Drucker
Published 1989
15
Published 1956
16
Published 1956
17
Published 1956
18
Published 1922
19
Published 1922
20
Published 1956