The Dueling Machine By Bova, Ben Books / Paperback Special Collections / Author Archives › D. Douglas Fratz Collection Publisher: Signet, January 1973 Price $9.49 Free Shipping Send to a friend Collectible - Acceptable Collectible - Acceptable. Mass Market Paperback edition. Front endpage detached. From the library of science fiction and fantasy writer, editor, publisher and prolific book reviewer D. Douglas Fratz. (Science Fiction, Fantasy) $9.49 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.