Donoovan John J. Systems Programming. Mc Graw Hill.
Chicago-čujuhus (17. p.)Donoovan John J. Systems Programming. Mc Graw Hill.
MLA-čujuhus (9. p.)Donoovan John J. Systems Programming. Mc Graw Hill.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.