The truth about Columbus and the discovery of America,by Charles Duff; with an introduction by Philip Guedalla.
- New York, Random House (c)1936.
- xv pages, 1 ., 296 pages pl., 2 portrait (including front.) 2 facsimile 22 cm.
Coat of arms on t.-p.; maps on lining-papers. "A chronology of the principal events relating to the life of Christopher Columbus and the discovery of America": pages 279-288.