Harvard

To be made up of:

• Name of person (in single quotation marks).
• Year of census (in round brackets).
• Census return for ... (in italics).
• Street, place, county (in italics).
• Registration subdistrict (in italics).
• Public Record Office.
• Piece number, folio number, page number.

If you retrieved the certificate online, add:

• Year of last update (in round brackets).
• Available at: URL.
• (Accessed: date).

In-text citation:

(‘Mark Jones’, 1956)

Reference list:

‘Mark Jones’ (1956). Census return for Leeds Road, Bishopthorpe, York subdistrict, North Yorkshire. Public Record Office: PRO YO9/3765, folio 89, p.8 (1956). Available at: http://www.ancestry.co.uk (Accessed: 23 June 2015).