Columbia subject headings:
Harvard subject headings:
Sex (Psychology)--Humor.
Sex customs--Spain--History--20th century.
Sex customs--Spain--Humor.
Sex instruction--Spain--History.
Sex--Religious aspects--Catholic Church
Sexual ethics--Spain--History.
Sexual ethics--Spain--Humor.
Princeton subject headings:
Humor.
Sex (Psychology)--Humor.
Sex customs--Spain--History--20th century.
Sex customs--Spain--Humor.
Sexual ethics--Spain--Humor.