The newest version of the University of Chicago Manual of Legal Citation, known as the Maroonbook, is available online in PDF. This brief — 77 page — competitor to the Bluebook is not directly applicable to us here in Canada, of course, but may assist with material filed in the United States. And it serves to remind us that we, too, ought to have available to us a free, online manual.
We've mooted this on Slaw a number of times, and, if some irons I've got in the fire at the moment get hot in the next few weeks, I'll have more to say on a possible Slaw project to create such a manual.
Of interest, perhaps, is the fact that the Maroonbook advises us to "[o]mit periods and apostrophes whenever possible." Slawyer Gary P. Rodrigues addressed the pesky point in The full stop in legal citation – has its time finally come?