McKie, David (7 January 2018). "Peter Preston obituary". The Guardian. Archived from the original on 30 June 2019. Retrieved 7 January 2018 – via www.theguardian.com.
McKie, David (7 January 2018). "Peter Preston obituary". The Guardian. Archived from the original on 30 June 2019. Retrieved 7 January 2018 – via www.theguardian.com.