Campbell, M. (1994). DOS answers: Certified support. Osborne McGraw-Hill.
Chicago-čujuhus (17. p.)Campbell, Mary. DOS Answers: Certified Support. New York: Osborne McGraw-Hill, 1994.
MLA-čujuhus (9. p.)Campbell, Mary. DOS Answers: Certified Support. Osborne McGraw-Hill, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.