C.O. Alley S.A. Batterson E.M. Christensen S.E. Dwornik D. E. Gault J.W. Lucas D.O. Muhleman R.H. Norton R.F. Scott E.M. Shoemaker R.H. Steinbacher G.H. Sutton A.L. Turkevich L.D. Jaffe 1970 <p>No abstract available.</p> application/pdf 10.1016/0019-1035(70)90068-0 en Elsevier Principal scientific results from the surveyor program article