http://mangaldaicollege.digitallibrary.co.in//handle/123456789/733 Fri, 17 Apr 2026 18:59:44 GMT 2026-04-17T18:59:44Z http://mangaldaicollege.digitallibrary.co.in//handle/123456789/734 Title: Study of the Earth Authors: White, J.F. Mon, 01 Jan 1962 00:00:00 GMT http://mangaldaicollege.digitallibrary.co.in//handle/123456789/734 1962-01-01T00:00:00Z