APA-čujuhus (7. p.)
ebrary, Inc, & Hoppe, E. (2011). Ethical issues in aviation. Ashgate.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Elizabeth Hoppe. Ethical Issues in Aviation. Farnham, Surrey, England ; Burlington, Vt.: Ashgate, 2011.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Elizabeth Hoppe. Ethical Issues in Aviation. Ashgate, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.