Columbia subject headings:
Harvard subject headings:
Gays--Family relationships--Congresses.
Homosexuality--Religious aspects--Congresses.
Homosexuality--Social aspects--Congresses.
Parents of gays--Congresses.
Princeton subject headings:
Gays--Family relationships--Congresses.
Homosexuality--Religious aspects--Congresses.
Homosexuality--Social aspects--Congresses.
Parents of gays--Congresses.