Columbia subject headings:
Harvard subject headings:
Kerala (India)--Emigration and immigration--Economic aspects.
Kerala (India)--Emigration and immigration--Social aspects.
Kerala (India)--Emigration and immigration.
Princeton subject headings:
Kerala (India)--Emigration and immigration--Economic aspects.
Kerala (India)--Emigration and immigration--Social aspects.
Migration, Internal--Economic aspects--India--Kerala.
Migration, Internal--Social aspects--India--Kerala.