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Publisher description http://catdir.loc.gov/catdir/enhancements/fy1001/2009037477-d.html
Table of contents only http://catdir.loc.gov/catdir/enhancements/fy1001/2009037477-t.html

Table of contents Kostenfrei
Table of contents http://catdir.loc.gov/catdir/toc/ecip078/2007002094.html
Table of contents http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015583995&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
Table of contents http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=015583995&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA

Table of contents only http://www.loc.gov/catdir/toc/ecip0717/2007018294.html
Contributor biographical information http://www.loc.gov/catdir/enhancements/fy0806/2007018294-b.html
Publisher description http://www.loc.gov/catdir/enhancements/fy0806/2007018294-d.html

Inhaltsverzeichnis
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Contributor biographical information http://catdir.loc.gov/catdir/enhancements/fy0743/2007035250-b.html
Table of contents only http://catdir.loc.gov/catdir/enhancements/fy0743/2007035250-t.html
Publisher description http://catdir.loc.gov/catdir/enhancements/fy0803/2007035250-d.html

Table of contents http://catdir.loc.gov/catdir/toc/ecip077/2006102454.html
Publisher description http://catdir.loc.gov/catdir/enhancements/fy0704/2006102454-d.html
The Louis A. Duhring Fund Home Page http://hdl.library.upenn.edu/1017.12/366308
The Alumni and Friends Memorial Book Fund Home Page http://hdl.library.upenn.edu/1017.12/366295

Table of contents http://www.loc.gov/catdir/toc/ecip066/2006000013.html