Time Enough for Love

Friday

Robert A. Heinlein

1982

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Have Space Suit—Will Travel

Robert A. Heinlein

1958

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The Door Into Summer

Robert A. Heinlein

1957

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The Puppet Masters

Robert A. Heinlein

1951

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The Ringworld Engineers

Larry Niven

1979

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Methuselah's Children

Robert A. Heinlein

1958

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