Legal citation is the practice of crediting and referring to authoritative documents and sources.
The most common sources of authority cited are court decisions (cases), statutes, regulations, government documents, treaties, and scholarly writing.
[2] OSCOLA Ireland was adapted from the Oxford Standard for Citation of Legal Authorities.
Guidance for UK government drafters is provided in Statutory Instrument Practice.
The two key differences are the pincite, page 527 here, and the addition of the dissenting justices' names in a parenthetical following the date of the case.