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

Inhaltsverzeichnis
Table of contents http://catdir.loc.gov/catdir/toc/hol051/2001017614.html
Contributor biographical information http://catdir.loc.gov/catdir/bios/hol058/2001017614.html
Publisher description http://catdir.loc.gov/catdir/description/hol051/2001017614.html