TY - BOOK ED - National Academy of Sciences TI - Science, Vol 213, No 4503 PY - 1981/// CY - Washington, D. C. PB - U.S. Geodynamics Committee KW - Environmental CrisisGeodynamicsOcean Crustal DynamicsPersonal Collection Prof. B.P.SinghPrecambrian Perspectives N1 - Personal Collection:Prof. B.P.Singh ER -