Cardinal. Taking Aviation to New Heights. University of Ottawa Press.
Chicago-čujuhus (17. p.)Cardinal. Taking Aviation to New Heights. University of Ottawa Press.
MLA-čujuhus (9. p.)Cardinal. Taking Aviation to New Heights. University of Ottawa Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.