To reference information from a blog, you should include the author (probably an organisation) and the title of the press release in single quotation marks, followed by an additional information required to identify the release, the date or year of the release in brackets. If a release is only available online include a web address and access date.
Format: Corporate authors, 'Title of the press release' (additional information, publisher, year or Date of Publication)
Example: The Law Society, 'UK Negotiating Stance Brings Hop for the Economically Vital Legal Sector' (2018) <https://www.lawsociety.org.uk/news/press-releases/uk-negotiating-stance-hope-economically-vital-legal-sector/ accessed 5 June 2018
There is no change in format between a footnote reference and a bibliography entry.