1
by Iceland, John
Published 2005
National Academies Press

2
by King, Steven
Manchester University Press

3
by Rodríguez, Ileana
Duke University Press

4
by Optic, Oliver
University of Virginia Library

5
by London, Jack
Alex Catalogue

6
by Booth, William
Project Gutenberg

7
by O'Connor, Alice
Published 2001
Princeton University Press

8
by Prescott, Nicholas M.
Published 1997
World Bank

9
by Collier, Paul
Published 2002
World Bank

10
by Davidson, Carl
W.E. Upjohn Institute for Employment Research

11
United Nations

12
by Dickens, Charles
Alex Catalogue