00422ntaaa2200169 45000030003000000050017000030080021000200400037000410820017000781000020000952450024001152500010001392600049001493000009001985000033002076500012002400120251027202724.00714s1973 ag 01 aAR-BaBNbspacAR-BaBNeaacrdRIC a629.1388 D29 aDavis, Clive E aMessages from space a1 ed. aNew York : bDodd, Mead and Company, cc1961 a95 p aLa exploración del espacio aespacio