Columbia subject headings:
Gay rights--United States.
Homophobia--United States.
Same-sex marriage--Law and legislation--United States.
Same-sex marriage--Political aspects--United States.
Same-sex marriage--United States.
Harvard subject headings:
Gay rights--United States
Homophobia--United States.
Same-sex marriage--Law and legislation--United States
Same-sex marriage--Political aspects--United States.
Same-sex marriage--United States
Princeton subject headings:
Gay rights--United States.
Homophobia--United States.
Same-sex marriage--Law and legislation--United States.
Same-sex marriage--Political aspects--United States.
Same-sex marriage--United States.