Not sure the author or the title of the book.?

Question: Not sure the author or the title of the book!.!?

When I was a kid, I read a novel or short story, and I'm not sure what the title of it was!. It's about this company which transports people to the past to kill a dinosaur!. One person steps on a butterfly or leaf or something!. When they return, the world is in chaos!. I'd really like to read this again!. Any ideas!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

That's "The Sound of Thunder" by Ray Bradbury!. Excellent story, worth a second read, and a third!.Www@QuestionHome@Com