(Refer Snooks, p. 229)
In-Text: Harold Pinter speaks about his play .... (Pinter's Homecoming, Civilisation and John Brewer 2009)
References: Pinter's Homecoming, Civilisation and John Brewer 2009, podcast, BBC Radio 3, 20
February, accessed 25 February 2009, <http://downloads.bbc.co.uk/podcasts/radio3/r3arts/rss.xml>.
If you cannot find an example for what you are looking for then use: Chapter 12 'Methods of citations' from Snooks (2002)