Moolman, V. (1984). The future world of transportation. Grolier.
Chicago-čujuhus (17. p.)Moolman, Valerie. The Future World of Transportation. New York: Grolier, 1984.
MLA-čujuhus (9. p.)Moolman, Valerie. The Future World of Transportation. Grolier, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.