O'Leary, T. J. (1991). Computing essentials: Annual Edition 1991-1992. McGraw-Hill.
Chicago-čujuhus (17. p.)O'Leary, Timothy J. Computing Essentials: Annual Edition 1991-1992. New York: McGraw-Hill, 1991.
MLA-čujuhus (9. p.)O'Leary, Timothy J. Computing Essentials: Annual Edition 1991-1992. McGraw-Hill, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.