Columbia subject headings:
Harvard subject headings:
Interracial marriage--Africa--Congresses.
Interracial marriage--America--Congresses.
Interracial marriage--Indian Ocean Region--Congresses.
Miscegenation--Africa--Congresses.
Miscegenation--America--Congresses.
Miscegenation--Colonies--Europe--Congresses.
Miscegenation--Indian Ocean Region--Congresses.
Racially mixed people--Africa--Congresses.
Racially mixed people--America--Congresses.
Racially mixed people--Indian Ocean Region--Congresses.
Princeton subject headings:
Interracial marriage--Africa--Congresses.
Interracial marriage--America--Congresses.
Interracial marriage--Colonies--Europe--Congresses.
Interracial marriage--Indian Ocean Region--Congresses.
Miscegenation--Africa--Congresses.
Miscegenation--America--Congresses.
Miscegenation--Colonies--Europe--Congresses.
Miscegenation--Indian Ocean Region--Congresses.
Racially mixed people--Africa--Congresses.
Racially mixed people--America--Congresses.
Racially mixed people--Colonies--Europe--Congresses.
Racially mixed people--Indian Ocean Region--Congresses.