1. International Dictionary of Geophysics, Vol. 2, Pergamon Press, 1967, pp. 1331–40 and Part I:Magnetic Observations made at Alibag, Annamalainagar and Trivandrum 1964. p. VII–10.2.
2. Maynard, N. C. and Cahill, L. J.Jr. Geophys. Res., 1965,70, 5923.
3. Sastry, T. S. G.Ibid., 1968,73, 1789.
4. Burrows, K. and Hall, S. H.Ibid., 1965,70, 2149.
5. Hutchinson, R. and Shuman, B.Ibid., 1961,66, 2687.