How do I cite Archbold?

I've got some pages from Archbold's Criminal Pleading, Evidence and Practice off Westlaw, but have no idea how to cite them. I need to cite them under the Oscola System.

The info at the top of the page on Westlaw is:
Archbold from Sweet and Maxwell
Chapter 11 - Hearsay Evidence
II. - Statute
A. - Criminal Justice Act 2003
Copyright (C) Sweet & Maxwell, Ltd.
This material was last updatedSeptember 10, 2006

(3) - Principal categories of admissibility: 11-15 to 11-40

Can someone tell me how I would cite this in my bibliography. Thanks