ebrary, Inc, & Sparks, P. R. (1991). Hurricane Elena, Gulf Coast, August 29-September 2, 1985. National Academy Press.
Chicago-čujuhus (17. p.)ebrary, Inc, juo Peter R. Sparks. Hurricane Elena, Gulf Coast, August 29-September 2, 1985. Washington, D.C.: National Academy Press, 1991.
MLA-čujuhus (9. p.)ebrary, Inc, juo Peter R. Sparks. Hurricane Elena, Gulf Coast, August 29-September 2, 1985. National Academy Press, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.