Exploring the Moon and Mars: Choices for the Nation By Gibbons, John H.: (Director OTA): Foreword: Books / Paperback Transportation › Spaceflight ISBN: 0160344158 / Publisher: United States Government Printing, August 1991 Price $17.96 Free Shipping Send to a friend Used - Very Good Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner’s name, short gifter’s inscription or light stamp. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included. $17.96 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.