Sessional Papers (aka Parliamentary) papers are the working documents of each session of Parliament. The more important papers are usually considered to be those presented to the House of Commons.
To find Sessional Papers in any format: know the sessional year, volume, and page number of the item.
Citation elements: Session date / Bill, Paper, or Command number / Volume number - page number.
Bill or Paper: 1884 (181) LXII 395
Command Paper: 1881 [c.2802] XCVIII 367
Bill and Paper numbers appear in (round brackets).
Command Paper numbers have no brackets or [square brackets].
See also how to read a citation.