(ORB II-2(25)) Geologic map of Apollo landing site 1, part of Maskelyne DA region southeastern Mare Tranquillitatis
E.C. Morris
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G.W. Colton
D.E. Wilhelms
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J.F. McCauley
Harold Masursky
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G.W. Colton
D.P. Elston
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E.L. Boudette
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J.P. Schafer
D.J. Milton
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A.S. Walker