Full bibliographic information is given in a bibliography. Royal Institute of British Architects 1. British Library King's MS 43 f.127. Plymouth City Council Planning Office, planning application for change of use of 34 Southside St 12.3.95. A bibliography is essential with the Harvard system and may be helpful if footnotes run into large numbers.
Readers can then easily locate the full reference from a shortened form given in a footnote.
It should not be regarded as a substitute for footnotes.