Columbia subject headings:
India--Languages.
Linguistics--Fieldwork--Handbooks, manuals, etc.
South Asia--Languages.
Harvard subject headings:
India--Languages.
Linguistics--Field work--Handbooks, manuals, etc.
South Asia--Languages.
Princeton subject headings:
Areal linguistics.
India--Languages.
Language and languages--India--Variation.
Linguistic change--India.
Linguistics--Field work--Handbooks, manuals, etc.
Linguistics--Methodology--Handbooks, manuals, etc.
Sociolinguistics--India.