Sinha, T. A. K. Space and time, vol. I T. A. K. Sinha - Varanasi T.A.K. Sinha 1977 - 371p. col.fig.; index 2016 book Subjects--Topical Terms: EarthquakesElectromagnetic WavesGravitySpaceTime Universal Decimal Class. No.: 52spc+529.7 / SIN