The format for citing electronic discourse in CR2/e is primarily from Janice R. Walker's Columbia Online Style, which is a reworking of and improvement on the Modern Language Association (MLA)'s form. Precisely which style of citing e-discourse is the correct one has not yet been determined by any Earthly 'authority.' Therefore, it will be necessary, as it has always been the case, to be flexible in using whatever your instructor's or editor's preferred style might be.

Other examples:

MLA.

Andrew Harnack and Gene Kleppinger's Beyond the MLA Handbook: Documenting Electronic Sources on the Internet.

Michael N. Salda's Citing Electronic Materials with the New MLA Guidelines.