APA-čujuhus (7. p.)
Whitcomb, L. (Jan 1990). OCLC's Epic System Offers A New Way To Search The OCLC Data. Online.
Chicago-čujuhus (17. p.)
Whitcomb, Laurie. "OCLC's Epic System Offers A New Way To Search The OCLC Data." Online Jan 1990.
MLA-čujuhus (9. p.)
Whitcomb, Laurie. "OCLC's Epic System Offers A New Way To Search The OCLC Data." Online, Jan 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.