Links
[1] https://loc.gov/aba/publications/FreeLCSH/freelcsh.html
[2] https://sites.google.com/site/seesscm/subject-index#Subject
[3] https://loc.gov/catdir/cpso/genre_form_faq.pdf
[4] http://web.library.yale.edu/cataloging/editing/form-genre-policy
[5] http://web.library.yale.edu/cataloging/authorities/subfieldv
[6] http://web.library.yale.edu/cataloging/editing/lgbtq-070607
[7] http://web.library.yale.edu/cataloging/local-subj-headings
[8] http://www.loc.gov/catworkshop/lcsh/