Act of Parliament
Title of the Act and year. (chapter number of the Act; abbreviated to 'c.'). Place of publication: Publisher.
Acts of Parliament are published by The Stationery Office whose headquarters are based in London. Before 1963 the Stationery Office was referred to as HMSO.
Example:
Modern Slavery Act 2015. (c.30). London: The Stationery Office.
For Acts published before 1963 you must also include some additional information:
Title of the Act and year. (Year of reign of the monarch at the time the Act was introduced, the monarch's name which can be abbreviated, chapter number of the Act). Place of publication: Publisher.
Example:
Homicide Act 1957. (5&6 Eliz.2, c.11). London: HMSO.
Online Act
If you are referencing an Act you found online, this should be indicated in the reference.
Title of the Act and year. (chapter number of the Act; abbreviated to 'c'). [Online]. Place of publication: Publisher. [Date accessed]. Available from: URL
Example:
Higher Education and Research Act 2017. (c.29). [Online]. London: The Stationery Office. [Accessed 14 May 2018]. Available from: http://www.legislation.gov.uk/