Columbia subject headings:
Slavery--Madagascar--History.
Slavery--Political aspects--Madagascar.
Slavery--Religious aspects--Christianity.
Harvard subject headings:
Slavery--Madagascar--History.
Slavery--Political aspects--Madagascar.
Slavery--Religious aspects--Christianity
Slaves--Emancipation--Madagascar.
Princeton subject headings:
Slavery--Madagascar--History.
Slavery--Political aspects--Madagascar.
Slavery--Religious aspects--Christianity.