2010: Odyssey Two

Rama II

Arthur C. Clarke

1989

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The Garden of Rama (Rama, #3)

Arthur C. Clarke

1991

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Nightfall

Isaac Asimov

1970

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The Caves of Steel

Isaac Asimov

1954

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2061: Odyssey Three

Arthur C. Clarke

1987

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Have Space Suit—Will Travel

Robert A. Heinlein

1958

Covers from OpenLibrary