Consulta en línea
ebrary http://site.ebrary.com/id/10135400
Table of contents http://catdir.loc.gov/catdir/toc/hol052/2004054404.html
Book review (H-Net) http://www.h-net.org/review/hrev-a0e8j7-aa
Contributor biographical information http://catdir.loc.gov/catdir/bios/hol056/2004054404.html

E-book - Full text from MyiLibrary
Contributor biographical information http://catdir.loc.gov/catdir/enhancements/fy0738/2002014785-b.html
Publisher description http://catdir.loc.gov/catdir/enhancements/fy0722/2002014785-d.html
Publisher description http://catdir.loc.gov/catdir/enhancements/fy0665/2002036795-d.html
Table of contents http://catdir.loc.gov/catdir/toc/ecip042/2003007037.html