00329nam a2200097   450000100070000000500170000700800360002410000360006024500850009626400500018101282220260807101710.0260101s1987    pe      000 0 eng  d1 aMoore ; Hutton ; Clow ; Spitzer10aPhysical Properties of the Surface Materials at the Viking Landing Sites on Mars 1aWashington D.C.bU.S. Geological Surveyc1987