Calculated Risk: The Supersonic Life and Times of Gus Grissom, Revised and ExpandedeBookCalculated Risk: The Supersonic Life and Times of Gus Grissom, Revised and ExpandedkaryaGeorge LeopoldPenilaian: 4 dari 5 bintang4/5Simpan Calculated Risk: The Supersonic Life and Times of Gus Grissom, Revised and Expanded untuk nanti