A.E. van Vogt, Quest for the Future A.E. van Vogt, Rogue Ship Isaac Asimov, The End of Eternity Poul Anderson, War of the Wingmen Robert A. Heinlein, "By His Bootstraps"
If you include getting to "the future" by the normal way (or semi-normal, like being in cold storage) there are many more, including:
Robert A. Heinlein, The Door Into Summer Frederick Pohl, Age of the Pussyfoot
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A.E. van Vogt, Quest for the Future
A.E. van Vogt, Rogue Ship
Isaac Asimov, The End of Eternity
Poul Anderson, War of the Wingmen
Robert A. Heinlein, "By His Bootstraps"
If you include getting to "the future" by the normal way (or semi-normal, like being in cold storage) there are many more, including:
Robert A. Heinlein, The Door Into Summer
Frederick Pohl, Age of the Pussyfoot