Columbia subject headings:
Harvard subject headings:
Infrastructure (Economics)--India--Konkan.
Konkan Railway.
Railroads and state--India--Konkan.
Railroads--Environmental aspects--India--Konkan.
Princeton subject headings:
Infrastructure (Economics)--India--Konkan.
Konkan Railway.
Railroads--Environmental aspects--India--Konkan.
Railroads--India--Konkan.