Barbara, K.(2008).The history detectives explore Lincoln's letter, Parker's Sax and Mark Twain's watch : and many more mysteries of America's past .:John Wiley.
Gaya MLA
Karg, Barbara."The history detectives explore Lincoln's letter, Parker's Sax and Mark Twain's watch : and many more mysteries of America's past".:John Wiley,2008.Textbook.