Inhaltsverzeichnis http://digitool.hbz-nrw.de:1801/webclient/DeliveryManager?pid=3229653

Table of contents http://catdir.loc.gov/catdir/enhancements/fy1514/98048547-t.html
Contributor biographical information http://catdir.loc.gov/catdir/enhancements/fy1514/98048547-b.html
Publisher description http://catdir.loc.gov/catdir/enhancements/fy1514/98048547-d.html

Contributor biographical information http://www.loc.gov/catdir/bios/guilford051/95044912.html
Publisher description http://www.loc.gov/catdir/description/guilford051/95044912.html
Table of contents http://www.loc.gov/catdir/toc/guilford041/95044912.html

Table of contents http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=005889747&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA