For centuries man has pondered the possibility of traveling back in time. Among the imponderables have been: How does man get there? Can actions taken in the past influence the present? How does man... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.