http://aleph0.clarku.edu/~djoyce/mathhist/sourcebooks.html
http://aleph0.clarku.edu/~djoyce/mathhist/bibcat.html
http://aleph0.clarku.edu/~djoyce/mathhist/journals.html
http://aleph0.clarku.edu/~djoyce/mathhist/subjects.html
http://aleph0.clarku.edu/~djoyce/mathhist/earth.html