"Géophysique Congrès." . . "Terre Structure interne Congrès." . . "Estats Units d'Amèrica. Office of Naval Research." . . "Symposium on the Nature and Physical Properties of the Earth's Crust <1976, Vail, Colo.>" . . "American Geophysical Union." . . "Earth (Planet)" . . "Lithosphère Congrès." . . . . "Congressos i conferències" . . "Geofísica" . . "Symposium on the Nature and Physical Properties of the Earth's Crust (1976 : Vail, Colo.)" . . . "Symposium on the Nature and Physical Properties of the Earth's Crust (1976 : Vail)" . . . "Corteza terrestre." . . "Geophysics, Congresses." . . "Terre" . . "Earth, Crust, Congresses." . . "Lithosphère." . . . . . . . "Conference papers and proceedings" . . . . . . . . . "Electronic books" . . "The earth's Crust : its nature and physical properties ; [presented at the Symposium on the Nature and Physical Properties of the Earth's Crust, held August 2 to 6, 1976, at Vail, Colorado]" . . . . . . . . . . . "The earths̕ crust its nature and physical properties" . . "The earth's crust : its nature and physical properties" . . . . . . . . . . . . . . . "The Earth's crust : its nature and physical properties" . . . . . . "The Earth's crust its nature and physical properties" . . . "Escorça terrestre" . .