1
by Beck, Ulrich
Published 2002
SAGE

2
by Collins, Randall
Published 2004
Princeton University Press

3
by Kropotkin, Petr Alekseevich
Published 1915
Heinemann

4
by Blau, Peter Michael
Published 2003
Stanford Business Books

5
by Graff, Harvey J.
Published 1987
Indiana University Press