Robert A. Heinlein
First published in The Magazine of Fantasy and Science Fiction - March, 1959 - the story involves a number of paradoxes caused by time travel. It further develops themes explored by the author in a previous work, "By His Bootstraps", published some 18 years earlier.
Science Fiction,Short Stories,Science Fiction,Time Travel,Fiction,Classics,Fantasy,Science Fiction Fantasy,Speculative Fiction,Literature,American,Mystery
All You Zombies