HERTST, J. (2009). MAJOR INVENTIONS THROUGH HISTORY: THE HISTORY OF TRANSPORT. LERNER BOOKS.
Chicago-čujuhus (17. p.)HERTST, JUDITH. MAJOR INVENTIONS THROUGH HISTORY: THE HISTORY OF TRANSPORT. LONDON: LERNER BOOKS, 2009.
MLA-čujuhus (9. p.)HERTST, JUDITH. MAJOR INVENTIONS THROUGH HISTORY: THE HISTORY OF TRANSPORT. LERNER BOOKS, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.